ref: 27bec1c761704484e5649d0a504e8f5e53450841
dir: /vp9/encoder/vp9_pickmode.c/
/*
* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <assert.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include "./vp9_rtcd.h"
#include "./vpx_dsp_rtcd.h"
#include "vpx/vpx_codec.h"
#include "vpx_dsp/vpx_dsp_common.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_ports/mem.h"
#include "vp9/common/vp9_blockd.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/vp9_mvref_common.h"
#include "vp9/common/vp9_pred_common.h"
#include "vp9/common/vp9_reconinter.h"
#include "vp9/common/vp9_reconintra.h"
#include "vp9/common/vp9_scan.h"
#include "vp9/encoder/vp9_cost.h"
#include "vp9/encoder/vp9_encoder.h"
#include "vp9/encoder/vp9_pickmode.h"
#include "vp9/encoder/vp9_ratectrl.h"
#include "vp9/encoder/vp9_rd.h"
typedef struct {
uint8_t *data;
int stride;
int in_use;
} PRED_BUFFER;
typedef struct {
PRED_BUFFER *best_pred;
PREDICTION_MODE best_mode;
TX_SIZE best_tx_size;
TX_SIZE best_intra_tx_size;
MV_REFERENCE_FRAME best_ref_frame;
MV_REFERENCE_FRAME best_second_ref_frame;
uint8_t best_mode_skip_txfm;
INTERP_FILTER best_pred_filter;
} BEST_PICKMODE;
static const int pos_shift_16x16[4][4] = {
{ 9, 10, 13, 14 }, { 11, 12, 15, 16 }, { 17, 18, 21, 22 }, { 19, 20, 23, 24 }
};
static int mv_refs_rt(VP9_COMP *cpi, const VP9_COMMON *cm, const MACROBLOCK *x,
const MACROBLOCKD *xd, const TileInfo *const tile,
MODE_INFO *mi, MV_REFERENCE_FRAME ref_frame,
int_mv *mv_ref_list, int_mv *base_mv, int mi_row,
int mi_col, int use_base_mv) {
const int *ref_sign_bias = cm->ref_frame_sign_bias;
int i, refmv_count = 0;
const POSITION *const mv_ref_search = mv_ref_blocks[mi->sb_type];
int different_ref_found = 0;
int context_counter = 0;
int const_motion = 0;
// Blank the reference vector list
memset(mv_ref_list, 0, sizeof(*mv_ref_list) * MAX_MV_REF_CANDIDATES);
// The nearest 2 blocks are treated differently
// if the size < 8x8 we get the mv from the bmi substructure,
// and we also need to keep a mode count.
for (i = 0; i < 2; ++i) {
const POSITION *const mv_ref = &mv_ref_search[i];
if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
const MODE_INFO *const candidate_mi =
xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride];
// Keep counts for entropy encoding.
context_counter += mode_2_counter[candidate_mi->mode];
different_ref_found = 1;
if (candidate_mi->ref_frame[0] == ref_frame)
ADD_MV_REF_LIST(get_sub_block_mv(candidate_mi, 0, mv_ref->col, -1),
refmv_count, mv_ref_list, Done);
}
}
const_motion = 1;
// Check the rest of the neighbors in much the same way
// as before except we don't need to keep track of sub blocks or
// mode counts.
for (; i < MVREF_NEIGHBOURS && !refmv_count; ++i) {
const POSITION *const mv_ref = &mv_ref_search[i];
if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
const MODE_INFO *const candidate_mi =
xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride];
different_ref_found = 1;
if (candidate_mi->ref_frame[0] == ref_frame)
ADD_MV_REF_LIST(candidate_mi->mv[0], refmv_count, mv_ref_list, Done);
}
}
// Since we couldn't find 2 mvs from the same reference frame
// go back through the neighbors and find motion vectors from
// different reference frames.
if (different_ref_found && !refmv_count) {
for (i = 0; i < MVREF_NEIGHBOURS; ++i) {
const POSITION *mv_ref = &mv_ref_search[i];
if (is_inside(tile, mi_col, mi_row, cm->mi_rows, mv_ref)) {
const MODE_INFO *const candidate_mi =
xd->mi[mv_ref->col + mv_ref->row * xd->mi_stride];
// If the candidate is INTRA we don't want to consider its mv.
IF_DIFF_REF_FRAME_ADD_MV(candidate_mi, ref_frame, ref_sign_bias,
refmv_count, mv_ref_list, Done);
}
}
}
if (use_base_mv &&
!cpi->svc.layer_context[cpi->svc.temporal_layer_id].is_key_frame &&
ref_frame == LAST_FRAME) {
// Get base layer mv.
MV_REF *candidate =
&cm->prev_frame
->mvs[(mi_col >> 1) + (mi_row >> 1) * (cm->mi_cols >> 1)];
if (candidate->mv[0].as_int != INVALID_MV) {
base_mv->as_mv.row = (candidate->mv[0].as_mv.row * 2);
base_mv->as_mv.col = (candidate->mv[0].as_mv.col * 2);
clamp_mv_ref(&base_mv->as_mv, xd);
} else {
base_mv->as_int = INVALID_MV;
}
}
Done:
x->mbmi_ext->mode_context[ref_frame] = counter_to_context[context_counter];
// Clamp vectors
for (i = 0; i < MAX_MV_REF_CANDIDATES; ++i)
clamp_mv_ref(&mv_ref_list[i].as_mv, xd);
return const_motion;
}
static int combined_motion_search(VP9_COMP *cpi, MACROBLOCK *x,
BLOCK_SIZE bsize, int mi_row, int mi_col,
int_mv *tmp_mv, int *rate_mv,
int64_t best_rd_sofar, int use_base_mv) {
MACROBLOCKD *xd = &x->e_mbd;
MODE_INFO *mi = xd->mi[0];
struct buf_2d backup_yv12[MAX_MB_PLANE] = { { 0, 0 } };
const int step_param = cpi->sf.mv.fullpel_search_step_param;
const int sadpb = x->sadperbit16;
MV mvp_full;
const int ref = mi->ref_frame[0];
const MV ref_mv = x->mbmi_ext->ref_mvs[ref][0].as_mv;
MV center_mv;
uint32_t dis;
int rate_mode;
const MvLimits tmp_mv_limits = x->mv_limits;
int rv = 0;
int cost_list[5];
int search_subpel = 1;
const YV12_BUFFER_CONFIG *scaled_ref_frame =
vp9_get_scaled_ref_frame(cpi, ref);
if (scaled_ref_frame) {
int i;
// Swap out the reference frame for a version that's been scaled to
// match the resolution of the current frame, allowing the existing
// motion search code to be used without additional modifications.
for (i = 0; i < MAX_MB_PLANE; i++) backup_yv12[i] = xd->plane[i].pre[0];
vp9_setup_pre_planes(xd, 0, scaled_ref_frame, mi_row, mi_col, NULL);
}
vp9_set_mv_search_range(&x->mv_limits, &ref_mv);
// Limit motion vector for large lightning change.
if (cpi->oxcf.speed > 5 && x->lowvar_highsumdiff) {
x->mv_limits.col_min = VPXMAX(x->mv_limits.col_min, -10);
x->mv_limits.row_min = VPXMAX(x->mv_limits.row_min, -10);
x->mv_limits.col_max = VPXMIN(x->mv_limits.col_max, 10);
x->mv_limits.row_max = VPXMIN(x->mv_limits.row_max, 10);
}
assert(x->mv_best_ref_index[ref] <= 2);
if (x->mv_best_ref_index[ref] < 2)
mvp_full = x->mbmi_ext->ref_mvs[ref][x->mv_best_ref_index[ref]].as_mv;
else
mvp_full = x->pred_mv[ref];
mvp_full.col >>= 3;
mvp_full.row >>= 3;
if (!use_base_mv)
center_mv = ref_mv;
else
center_mv = tmp_mv->as_mv;
if (x->sb_use_mv_part) {
tmp_mv->as_mv.row = x->sb_mvrow_part >> 3;
tmp_mv->as_mv.col = x->sb_mvcol_part >> 3;
} else {
vp9_full_pixel_search(
cpi, x, bsize, &mvp_full, step_param, cpi->sf.mv.search_method, sadpb,
cond_cost_list(cpi, cost_list), ¢er_mv, &tmp_mv->as_mv, INT_MAX, 0);
}
x->mv_limits = tmp_mv_limits;
// calculate the bit cost on motion vector
mvp_full.row = tmp_mv->as_mv.row * 8;
mvp_full.col = tmp_mv->as_mv.col * 8;
*rate_mv = vp9_mv_bit_cost(&mvp_full, &ref_mv, x->nmvjointcost, x->mvcost,
MV_COST_WEIGHT);
rate_mode =
cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref]][INTER_OFFSET(NEWMV)];
rv =
!(RDCOST(x->rdmult, x->rddiv, (*rate_mv + rate_mode), 0) > best_rd_sofar);
// For SVC on non-reference frame, avoid subpel for (0, 0) motion.
if (cpi->use_svc && cpi->svc.non_reference_frame) {
if (mvp_full.row == 0 && mvp_full.col == 0) search_subpel = 0;
}
if (rv && search_subpel) {
SUBPEL_FORCE_STOP subpel_force_stop = cpi->sf.mv.subpel_force_stop;
if (use_base_mv && cpi->sf.base_mv_aggressive) subpel_force_stop = HALF_PEL;
if (cpi->sf.mv.enable_adaptive_subpel_force_stop) {
const int mv_thresh = cpi->sf.mv.adapt_subpel_force_stop.mv_thresh;
if (abs(tmp_mv->as_mv.row) >= mv_thresh ||
abs(tmp_mv->as_mv.col) >= mv_thresh)
subpel_force_stop = cpi->sf.mv.adapt_subpel_force_stop.force_stop_above;
else
subpel_force_stop = cpi->sf.mv.adapt_subpel_force_stop.force_stop_below;
}
cpi->find_fractional_mv_step(
x, &tmp_mv->as_mv, &ref_mv, cpi->common.allow_high_precision_mv,
x->errorperbit, &cpi->fn_ptr[bsize], subpel_force_stop,
cpi->sf.mv.subpel_search_level, cond_cost_list(cpi, cost_list),
x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref], NULL, 0, 0,
cpi->sf.use_accurate_subpel_search);
*rate_mv = vp9_mv_bit_cost(&tmp_mv->as_mv, &ref_mv, x->nmvjointcost,
x->mvcost, MV_COST_WEIGHT);
}
if (scaled_ref_frame) {
int i;
for (i = 0; i < MAX_MB_PLANE; i++) xd->plane[i].pre[0] = backup_yv12[i];
}
return rv;
}
static void block_variance(const uint8_t *src, int src_stride,
const uint8_t *ref, int ref_stride, int w, int h,
unsigned int *sse, int *sum, int block_size,
#if CONFIG_VP9_HIGHBITDEPTH
int use_highbitdepth, vpx_bit_depth_t bd,
#endif
uint32_t *sse8x8, int *sum8x8, uint32_t *var8x8) {
int i, j, k = 0;
*sse = 0;
*sum = 0;
for (i = 0; i < h; i += block_size) {
for (j = 0; j < w; j += block_size) {
#if CONFIG_VP9_HIGHBITDEPTH
if (use_highbitdepth) {
switch (bd) {
case VPX_BITS_8:
vpx_highbd_8_get8x8var(src + src_stride * i + j, src_stride,
ref + ref_stride * i + j, ref_stride,
&sse8x8[k], &sum8x8[k]);
break;
case VPX_BITS_10:
vpx_highbd_10_get8x8var(src + src_stride * i + j, src_stride,
ref + ref_stride * i + j, ref_stride,
&sse8x8[k], &sum8x8[k]);
break;
case VPX_BITS_12:
vpx_highbd_12_get8x8var(src + src_stride * i + j, src_stride,
ref + ref_stride * i + j, ref_stride,
&sse8x8[k], &sum8x8[k]);
break;
}
} else {
vpx_get8x8var(src + src_stride * i + j, src_stride,
ref + ref_stride * i + j, ref_stride, &sse8x8[k],
&sum8x8[k]);
}
#else
vpx_get8x8var(src + src_stride * i + j, src_stride,
ref + ref_stride * i + j, ref_stride, &sse8x8[k],
&sum8x8[k]);
#endif
*sse += sse8x8[k];
*sum += sum8x8[k];
var8x8[k] = sse8x8[k] - (uint32_t)(((int64_t)sum8x8[k] * sum8x8[k]) >> 6);
k++;
}
}
}
static void calculate_variance(int bw, int bh, TX_SIZE tx_size,
unsigned int *sse_i, int *sum_i,
unsigned int *var_o, unsigned int *sse_o,
int *sum_o) {
const BLOCK_SIZE unit_size = txsize_to_bsize[tx_size];
const int nw = 1 << (bw - b_width_log2_lookup[unit_size]);
const int nh = 1 << (bh - b_height_log2_lookup[unit_size]);
int i, j, k = 0;
for (i = 0; i < nh; i += 2) {
for (j = 0; j < nw; j += 2) {
sse_o[k] = sse_i[i * nw + j] + sse_i[i * nw + j + 1] +
sse_i[(i + 1) * nw + j] + sse_i[(i + 1) * nw + j + 1];
sum_o[k] = sum_i[i * nw + j] + sum_i[i * nw + j + 1] +
sum_i[(i + 1) * nw + j] + sum_i[(i + 1) * nw + j + 1];
var_o[k] = sse_o[k] - (uint32_t)(((int64_t)sum_o[k] * sum_o[k]) >>
(b_width_log2_lookup[unit_size] +
b_height_log2_lookup[unit_size] + 6));
k++;
}
}
}
// Adjust the ac_thr according to speed, width, height and normalized sum
static int ac_thr_factor(const int speed, const int width, const int height,
const int norm_sum) {
if (speed >= 8 && norm_sum < 5) {
if (width <= 640 && height <= 480)
return 4;
else
return 2;
}
return 1;
}
static TX_SIZE calculate_tx_size(VP9_COMP *const cpi, BLOCK_SIZE bsize,
MACROBLOCKD *const xd, unsigned int var,
unsigned int sse, int64_t ac_thr) {
TX_SIZE tx_size;
if (cpi->common.tx_mode == TX_MODE_SELECT) {
if (sse > (var << 2))
tx_size = VPXMIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
else
tx_size = TX_8X8;
if (cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ &&
cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id))
tx_size = TX_8X8;
else if (tx_size > TX_16X16)
tx_size = TX_16X16;
// For screen-content force 4X4 tx_size over 8X8, for large variance.
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && tx_size == TX_8X8 &&
bsize <= BLOCK_16X16 && var > (ac_thr << 6))
tx_size = TX_4X4;
} else {
tx_size = VPXMIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
}
return tx_size;
}
static void model_rd_for_sb_y_large(VP9_COMP *cpi, BLOCK_SIZE bsize,
MACROBLOCK *x, MACROBLOCKD *xd,
int *out_rate_sum, int64_t *out_dist_sum,
unsigned int *var_y, unsigned int *sse_y,
int mi_row, int mi_col, int *early_term,
int *flag_preduv_computed) {
// Note our transform coeffs are 8 times an orthogonal transform.
// Hence quantizer step is also 8 times. To get effective quantizer
// we need to divide by 8 before sending to modeling function.
unsigned int sse;
int rate;
int64_t dist;
struct macroblock_plane *const p = &x->plane[0];
struct macroblockd_plane *const pd = &xd->plane[0];
const uint32_t dc_quant = pd->dequant[0];
const uint32_t ac_quant = pd->dequant[1];
int64_t dc_thr = dc_quant * dc_quant >> 6;
int64_t ac_thr = ac_quant * ac_quant >> 6;
unsigned int var;
int sum;
int skip_dc = 0;
const int bw = b_width_log2_lookup[bsize];
const int bh = b_height_log2_lookup[bsize];
const int num8x8 = 1 << (bw + bh - 2);
unsigned int sse8x8[64] = { 0 };
int sum8x8[64] = { 0 };
unsigned int var8x8[64] = { 0 };
TX_SIZE tx_size;
int i, k;
#if CONFIG_VP9_HIGHBITDEPTH
const vpx_bit_depth_t bd = cpi->common.bit_depth;
#endif
// Calculate variance for whole partition, and also save 8x8 blocks' variance
// to be used in following transform skipping test.
block_variance(p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride,
4 << bw, 4 << bh, &sse, &sum, 8,
#if CONFIG_VP9_HIGHBITDEPTH
cpi->common.use_highbitdepth, bd,
#endif
sse8x8, sum8x8, var8x8);
var = sse - (unsigned int)(((int64_t)sum * sum) >> (bw + bh + 4));
*var_y = var;
*sse_y = sse;
#if CONFIG_VP9_TEMPORAL_DENOISING
if (cpi->oxcf.noise_sensitivity > 0 && denoise_svc(cpi) &&
cpi->oxcf.speed > 5)
ac_thr = vp9_scale_acskip_thresh(ac_thr, cpi->denoiser.denoising_level,
(abs(sum) >> (bw + bh)),
cpi->svc.temporal_layer_id);
else
ac_thr *= ac_thr_factor(cpi->oxcf.speed, cpi->common.width,
cpi->common.height, abs(sum) >> (bw + bh));
#else
ac_thr *= ac_thr_factor(cpi->oxcf.speed, cpi->common.width,
cpi->common.height, abs(sum) >> (bw + bh));
#endif
tx_size = calculate_tx_size(cpi, bsize, xd, var, sse, ac_thr);
// The code below for setting skip flag assumes tranform size of at least 8x8,
// so force this lower limit on transform.
if (tx_size < TX_8X8) tx_size = TX_8X8;
xd->mi[0]->tx_size = tx_size;
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN && x->zero_temp_sad_source &&
x->source_variance == 0)
dc_thr = dc_thr << 1;
// Evaluate if the partition block is a skippable block in Y plane.
{
unsigned int sse16x16[16] = { 0 };
int sum16x16[16] = { 0 };
unsigned int var16x16[16] = { 0 };
const int num16x16 = num8x8 >> 2;
unsigned int sse32x32[4] = { 0 };
int sum32x32[4] = { 0 };
unsigned int var32x32[4] = { 0 };
const int num32x32 = num8x8 >> 4;
int ac_test = 1;
int dc_test = 1;
const int num = (tx_size == TX_8X8)
? num8x8
: ((tx_size == TX_16X16) ? num16x16 : num32x32);
const unsigned int *sse_tx =
(tx_size == TX_8X8) ? sse8x8
: ((tx_size == TX_16X16) ? sse16x16 : sse32x32);
const unsigned int *var_tx =
(tx_size == TX_8X8) ? var8x8
: ((tx_size == TX_16X16) ? var16x16 : var32x32);
// Calculate variance if tx_size > TX_8X8
if (tx_size >= TX_16X16)
calculate_variance(bw, bh, TX_8X8, sse8x8, sum8x8, var16x16, sse16x16,
sum16x16);
if (tx_size == TX_32X32)
calculate_variance(bw, bh, TX_16X16, sse16x16, sum16x16, var32x32,
sse32x32, sum32x32);
// Skipping test
x->skip_txfm[0] = SKIP_TXFM_NONE;
for (k = 0; k < num; k++)
// Check if all ac coefficients can be quantized to zero.
if (!(var_tx[k] < ac_thr || var == 0)) {
ac_test = 0;
break;
}
for (k = 0; k < num; k++)
// Check if dc coefficient can be quantized to zero.
if (!(sse_tx[k] - var_tx[k] < dc_thr || sse == var)) {
dc_test = 0;
break;
}
if (ac_test) {
x->skip_txfm[0] = SKIP_TXFM_AC_ONLY;
if (dc_test) x->skip_txfm[0] = SKIP_TXFM_AC_DC;
} else if (dc_test) {
skip_dc = 1;
}
}
if (x->skip_txfm[0] == SKIP_TXFM_AC_DC) {
int skip_uv[2] = { 0 };
unsigned int var_uv[2];
unsigned int sse_uv[2];
*out_rate_sum = 0;
*out_dist_sum = sse << 4;
// Transform skipping test in UV planes.
for (i = 1; i <= 2; i++) {
if (cpi->oxcf.speed < 8 || x->color_sensitivity[i - 1]) {
struct macroblock_plane *const p = &x->plane[i];
struct macroblockd_plane *const pd = &xd->plane[i];
const TX_SIZE uv_tx_size = get_uv_tx_size(xd->mi[0], pd);
const BLOCK_SIZE unit_size = txsize_to_bsize[uv_tx_size];
const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, pd);
const int uv_bw = b_width_log2_lookup[uv_bsize];
const int uv_bh = b_height_log2_lookup[uv_bsize];
const int sf = (uv_bw - b_width_log2_lookup[unit_size]) +
(uv_bh - b_height_log2_lookup[unit_size]);
const uint32_t uv_dc_thr = pd->dequant[0] * pd->dequant[0] >> (6 - sf);
const uint32_t uv_ac_thr = pd->dequant[1] * pd->dequant[1] >> (6 - sf);
int j = i - 1;
vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, i);
flag_preduv_computed[i - 1] = 1;
var_uv[j] = cpi->fn_ptr[uv_bsize].vf(
p->src.buf, p->src.stride, pd->dst.buf, pd->dst.stride, &sse_uv[j]);
if ((var_uv[j] < uv_ac_thr || var_uv[j] == 0) &&
(sse_uv[j] - var_uv[j] < uv_dc_thr || sse_uv[j] == var_uv[j]))
skip_uv[j] = 1;
else
break;
} else {
skip_uv[i - 1] = 1;
}
}
// If the transform in YUV planes are skippable, the mode search checks
// fewer inter modes and doesn't check intra modes.
if (skip_uv[0] & skip_uv[1]) {
*early_term = 1;
}
return;
}
if (!skip_dc) {
#if CONFIG_VP9_HIGHBITDEPTH
vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
dc_quant >> (xd->bd - 5), &rate, &dist);
#else
vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
dc_quant >> 3, &rate, &dist);
#endif // CONFIG_VP9_HIGHBITDEPTH
}
if (!skip_dc) {
*out_rate_sum = rate >> 1;
*out_dist_sum = dist << 3;
} else {
*out_rate_sum = 0;
*out_dist_sum = (sse - var) << 4;
}
#if CONFIG_VP9_HIGHBITDEPTH
vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
ac_quant >> (xd->bd - 5), &rate, &dist);
#else
vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3,
&rate, &dist);
#endif // CONFIG_VP9_HIGHBITDEPTH
*out_rate_sum += rate;
*out_dist_sum += dist << 4;
}
static void model_rd_for_sb_y(VP9_COMP *cpi, BLOCK_SIZE bsize, MACROBLOCK *x,
MACROBLOCKD *xd, int *out_rate_sum,
int64_t *out_dist_sum, unsigned int *var_y,
unsigned int *sse_y) {
// Note our transform coeffs are 8 times an orthogonal transform.
// Hence quantizer step is also 8 times. To get effective quantizer
// we need to divide by 8 before sending to modeling function.
unsigned int sse;
int rate;
int64_t dist;
struct macroblock_plane *const p = &x->plane[0];
struct macroblockd_plane *const pd = &xd->plane[0];
const int64_t dc_thr = p->quant_thred[0] >> 6;
const int64_t ac_thr = p->quant_thred[1] >> 6;
const uint32_t dc_quant = pd->dequant[0];
const uint32_t ac_quant = pd->dequant[1];
unsigned int var = cpi->fn_ptr[bsize].vf(p->src.buf, p->src.stride,
pd->dst.buf, pd->dst.stride, &sse);
int skip_dc = 0;
*var_y = var;
*sse_y = sse;
xd->mi[0]->tx_size = calculate_tx_size(cpi, bsize, xd, var, sse, ac_thr);
// Evaluate if the partition block is a skippable block in Y plane.
{
const BLOCK_SIZE unit_size = txsize_to_bsize[xd->mi[0]->tx_size];
const unsigned int num_blk_log2 =
(b_width_log2_lookup[bsize] - b_width_log2_lookup[unit_size]) +
(b_height_log2_lookup[bsize] - b_height_log2_lookup[unit_size]);
const unsigned int sse_tx = sse >> num_blk_log2;
const unsigned int var_tx = var >> num_blk_log2;
x->skip_txfm[0] = SKIP_TXFM_NONE;
// Check if all ac coefficients can be quantized to zero.
if (var_tx < ac_thr || var == 0) {
x->skip_txfm[0] = SKIP_TXFM_AC_ONLY;
// Check if dc coefficient can be quantized to zero.
if (sse_tx - var_tx < dc_thr || sse == var)
x->skip_txfm[0] = SKIP_TXFM_AC_DC;
} else {
if (sse_tx - var_tx < dc_thr || sse == var) skip_dc = 1;
}
}
if (x->skip_txfm[0] == SKIP_TXFM_AC_DC) {
*out_rate_sum = 0;
*out_dist_sum = sse << 4;
return;
}
if (!skip_dc) {
#if CONFIG_VP9_HIGHBITDEPTH
vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
dc_quant >> (xd->bd - 5), &rate, &dist);
#else
vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bsize],
dc_quant >> 3, &rate, &dist);
#endif // CONFIG_VP9_HIGHBITDEPTH
}
if (!skip_dc) {
*out_rate_sum = rate >> 1;
*out_dist_sum = dist << 3;
} else {
*out_rate_sum = 0;
*out_dist_sum = (sse - var) << 4;
}
#if CONFIG_VP9_HIGHBITDEPTH
vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize],
ac_quant >> (xd->bd - 5), &rate, &dist);
#else
vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bsize], ac_quant >> 3,
&rate, &dist);
#endif // CONFIG_VP9_HIGHBITDEPTH
*out_rate_sum += rate;
*out_dist_sum += dist << 4;
}
static void block_yrd(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *this_rdc,
int *skippable, int64_t *sse, BLOCK_SIZE bsize,
TX_SIZE tx_size, int rd_computed) {
MACROBLOCKD *xd = &x->e_mbd;
const struct macroblockd_plane *pd = &xd->plane[0];
struct macroblock_plane *const p = &x->plane[0];
const int num_4x4_w = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_h = num_4x4_blocks_high_lookup[bsize];
const int step = 1 << (tx_size << 1);
const int block_step = (1 << tx_size);
int block = 0, r, c;
const int max_blocks_wide =
num_4x4_w + (xd->mb_to_right_edge >= 0 ? 0 : xd->mb_to_right_edge >> 5);
const int max_blocks_high =
num_4x4_h + (xd->mb_to_bottom_edge >= 0 ? 0 : xd->mb_to_bottom_edge >> 5);
int eob_cost = 0;
const int bw = 4 * num_4x4_w;
const int bh = 4 * num_4x4_h;
#if CONFIG_VP9_HIGHBITDEPTH
// TODO(jingning): Implement the high bit-depth Hadamard transforms and
// remove this check condition.
// TODO(marpan): Use this path (model_rd) for 8bit under certain conditions
// for now, as the vp9_quantize_fp below for highbitdepth build is slow.
if (xd->bd != 8 ||
(cpi->oxcf.speed > 5 && cpi->common.frame_type != KEY_FRAME &&
bsize < BLOCK_32X32)) {
unsigned int var_y, sse_y;
(void)tx_size;
if (!rd_computed)
model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc->rate, &this_rdc->dist,
&var_y, &sse_y);
*sse = INT_MAX;
*skippable = 0;
return;
}
#endif
if (cpi->sf.use_simple_block_yrd && cpi->common.frame_type != KEY_FRAME &&
(bsize < BLOCK_32X32 ||
(cpi->use_svc &&
(bsize < BLOCK_32X32 || cpi->svc.temporal_layer_id > 0)))) {
unsigned int var_y, sse_y;
(void)tx_size;
if (!rd_computed)
model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc->rate, &this_rdc->dist,
&var_y, &sse_y);
*sse = INT_MAX;
*skippable = 0;
return;
}
(void)cpi;
// The max tx_size passed in is TX_16X16.
assert(tx_size != TX_32X32);
vpx_subtract_block(bh, bw, p->src_diff, bw, p->src.buf, p->src.stride,
pd->dst.buf, pd->dst.stride);
*skippable = 1;
// Keep track of the row and column of the blocks we use so that we know
// if we are in the unrestricted motion border.
for (r = 0; r < max_blocks_high; r += block_step) {
for (c = 0; c < num_4x4_w; c += block_step) {
if (c < max_blocks_wide) {
const scan_order *const scan_order = &vp9_default_scan_orders[tx_size];
tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block);
tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
uint16_t *const eob = &p->eobs[block];
const int diff_stride = bw;
const int16_t *src_diff;
src_diff = &p->src_diff[(r * diff_stride + c) << 2];
switch (tx_size) {
case TX_16X16:
vpx_hadamard_16x16(src_diff, diff_stride, coeff);
vp9_quantize_fp(coeff, 256, x->skip_block, p->round_fp, p->quant_fp,
qcoeff, dqcoeff, pd->dequant, eob, scan_order->scan,
scan_order->iscan);
break;
case TX_8X8:
vpx_hadamard_8x8(src_diff, diff_stride, coeff);
vp9_quantize_fp(coeff, 64, x->skip_block, p->round_fp, p->quant_fp,
qcoeff, dqcoeff, pd->dequant, eob, scan_order->scan,
scan_order->iscan);
break;
default:
assert(tx_size == TX_4X4);
x->fwd_txfm4x4(src_diff, coeff, diff_stride);
vp9_quantize_fp(coeff, 16, x->skip_block, p->round_fp, p->quant_fp,
qcoeff, dqcoeff, pd->dequant, eob, scan_order->scan,
scan_order->iscan);
break;
}
*skippable &= (*eob == 0);
eob_cost += 1;
}
block += step;
}
}
this_rdc->rate = 0;
if (*sse < INT64_MAX) {
*sse = (*sse << 6) >> 2;
if (*skippable) {
this_rdc->dist = *sse;
return;
}
}
block = 0;
this_rdc->dist = 0;
for (r = 0; r < max_blocks_high; r += block_step) {
for (c = 0; c < num_4x4_w; c += block_step) {
if (c < max_blocks_wide) {
tran_low_t *const coeff = BLOCK_OFFSET(p->coeff, block);
tran_low_t *const qcoeff = BLOCK_OFFSET(p->qcoeff, block);
tran_low_t *const dqcoeff = BLOCK_OFFSET(pd->dqcoeff, block);
uint16_t *const eob = &p->eobs[block];
if (*eob == 1)
this_rdc->rate += (int)abs(qcoeff[0]);
else if (*eob > 1)
this_rdc->rate += vpx_satd(qcoeff, step << 4);
this_rdc->dist += vp9_block_error_fp(coeff, dqcoeff, step << 4) >> 2;
}
block += step;
}
}
// If skippable is set, rate gets clobbered later.
this_rdc->rate <<= (2 + VP9_PROB_COST_SHIFT);
this_rdc->rate += (eob_cost << VP9_PROB_COST_SHIFT);
}
static void model_rd_for_sb_uv(VP9_COMP *cpi, BLOCK_SIZE plane_bsize,
MACROBLOCK *x, MACROBLOCKD *xd,
RD_COST *this_rdc, unsigned int *var_y,
unsigned int *sse_y, int start_plane,
int stop_plane) {
// Note our transform coeffs are 8 times an orthogonal transform.
// Hence quantizer step is also 8 times. To get effective quantizer
// we need to divide by 8 before sending to modeling function.
unsigned int sse;
int rate;
int64_t dist;
int i;
#if CONFIG_VP9_HIGHBITDEPTH
uint64_t tot_var = *var_y;
uint64_t tot_sse = *sse_y;
#else
uint32_t tot_var = *var_y;
uint32_t tot_sse = *sse_y;
#endif
this_rdc->rate = 0;
this_rdc->dist = 0;
for (i = start_plane; i <= stop_plane; ++i) {
struct macroblock_plane *const p = &x->plane[i];
struct macroblockd_plane *const pd = &xd->plane[i];
const uint32_t dc_quant = pd->dequant[0];
const uint32_t ac_quant = pd->dequant[1];
const BLOCK_SIZE bs = plane_bsize;
unsigned int var;
if (!x->color_sensitivity[i - 1]) continue;
var = cpi->fn_ptr[bs].vf(p->src.buf, p->src.stride, pd->dst.buf,
pd->dst.stride, &sse);
assert(sse >= var);
tot_var += var;
tot_sse += sse;
#if CONFIG_VP9_HIGHBITDEPTH
vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bs],
dc_quant >> (xd->bd - 5), &rate, &dist);
#else
vp9_model_rd_from_var_lapndz(sse - var, num_pels_log2_lookup[bs],
dc_quant >> 3, &rate, &dist);
#endif // CONFIG_VP9_HIGHBITDEPTH
this_rdc->rate += rate >> 1;
this_rdc->dist += dist << 3;
#if CONFIG_VP9_HIGHBITDEPTH
vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bs],
ac_quant >> (xd->bd - 5), &rate, &dist);
#else
vp9_model_rd_from_var_lapndz(var, num_pels_log2_lookup[bs], ac_quant >> 3,
&rate, &dist);
#endif // CONFIG_VP9_HIGHBITDEPTH
this_rdc->rate += rate;
this_rdc->dist += dist << 4;
}
#if CONFIG_VP9_HIGHBITDEPTH
*var_y = tot_var > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_var;
*sse_y = tot_sse > UINT32_MAX ? UINT32_MAX : (uint32_t)tot_sse;
#else
*var_y = tot_var;
*sse_y = tot_sse;
#endif
}
static int get_pred_buffer(PRED_BUFFER *p, int len) {
int i;
for (i = 0; i < len; i++) {
if (!p[i].in_use) {
p[i].in_use = 1;
return i;
}
}
return -1;
}
static void free_pred_buffer(PRED_BUFFER *p) {
if (p != NULL) p->in_use = 0;
}
static void encode_breakout_test(
VP9_COMP *cpi, MACROBLOCK *x, BLOCK_SIZE bsize, int mi_row, int mi_col,
MV_REFERENCE_FRAME ref_frame, PREDICTION_MODE this_mode, unsigned int var_y,
unsigned int sse_y, struct buf_2d yv12_mb[][MAX_MB_PLANE], int *rate,
int64_t *dist, int *flag_preduv_computed) {
MACROBLOCKD *xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
const BLOCK_SIZE uv_size = get_plane_block_size(bsize, &xd->plane[1]);
unsigned int var = var_y, sse = sse_y;
// Skipping threshold for ac.
unsigned int thresh_ac;
// Skipping threshold for dc.
unsigned int thresh_dc;
int motion_low = 1;
if (cpi->use_svc && ref_frame == GOLDEN_FRAME) return;
if (mi->mv[0].as_mv.row > 64 || mi->mv[0].as_mv.row < -64 ||
mi->mv[0].as_mv.col > 64 || mi->mv[0].as_mv.col < -64)
motion_low = 0;
if (x->encode_breakout > 0 && motion_low == 1) {
// Set a maximum for threshold to avoid big PSNR loss in low bit rate
// case. Use extreme low threshold for static frames to limit
// skipping.
const unsigned int max_thresh = 36000;
// The encode_breakout input
const unsigned int min_thresh =
VPXMIN(((unsigned int)x->encode_breakout << 4), max_thresh);
#if CONFIG_VP9_HIGHBITDEPTH
const int shift = (xd->bd << 1) - 16;
#endif
// Calculate threshold according to dequant value.
thresh_ac = (xd->plane[0].dequant[1] * xd->plane[0].dequant[1]) >> 3;
#if CONFIG_VP9_HIGHBITDEPTH
if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) {
thresh_ac = ROUND_POWER_OF_TWO(thresh_ac, shift);
}
#endif // CONFIG_VP9_HIGHBITDEPTH
thresh_ac = clamp(thresh_ac, min_thresh, max_thresh);
// Adjust ac threshold according to partition size.
thresh_ac >>=
8 - (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]);
thresh_dc = (xd->plane[0].dequant[0] * xd->plane[0].dequant[0] >> 6);
#if CONFIG_VP9_HIGHBITDEPTH
if ((xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) && shift > 0) {
thresh_dc = ROUND_POWER_OF_TWO(thresh_dc, shift);
}
#endif // CONFIG_VP9_HIGHBITDEPTH
} else {
thresh_ac = 0;
thresh_dc = 0;
}
// Y skipping condition checking for ac and dc.
if (var <= thresh_ac && (sse - var) <= thresh_dc) {
unsigned int sse_u, sse_v;
unsigned int var_u, var_v;
unsigned int thresh_ac_uv = thresh_ac;
unsigned int thresh_dc_uv = thresh_dc;
if (x->sb_is_skin) {
thresh_ac_uv = 0;
thresh_dc_uv = 0;
}
if (!flag_preduv_computed[0] || !flag_preduv_computed[1]) {
xd->plane[1].pre[0] = yv12_mb[ref_frame][1];
xd->plane[2].pre[0] = yv12_mb[ref_frame][2];
vp9_build_inter_predictors_sbuv(xd, mi_row, mi_col, bsize);
}
var_u = cpi->fn_ptr[uv_size].vf(x->plane[1].src.buf, x->plane[1].src.stride,
xd->plane[1].dst.buf,
xd->plane[1].dst.stride, &sse_u);
// U skipping condition checking
if (((var_u << 2) <= thresh_ac_uv) && (sse_u - var_u <= thresh_dc_uv)) {
var_v = cpi->fn_ptr[uv_size].vf(
x->plane[2].src.buf, x->plane[2].src.stride, xd->plane[2].dst.buf,
xd->plane[2].dst.stride, &sse_v);
// V skipping condition checking
if (((var_v << 2) <= thresh_ac_uv) && (sse_v - var_v <= thresh_dc_uv)) {
x->skip = 1;
// The cost of skip bit needs to be added.
*rate = cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
[INTER_OFFSET(this_mode)];
// More on this part of rate
// rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
// Scaling factor for SSE from spatial domain to frequency
// domain is 16. Adjust distortion accordingly.
// TODO(yunqingwang): In this function, only y-plane dist is
// calculated.
*dist = (sse << 4); // + ((sse_u + sse_v) << 4);
// *disable_skip = 1;
}
}
}
}
struct estimate_block_intra_args {
VP9_COMP *cpi;
MACROBLOCK *x;
PREDICTION_MODE mode;
int skippable;
RD_COST *rdc;
};
static void estimate_block_intra(int plane, int block, int row, int col,
BLOCK_SIZE plane_bsize, TX_SIZE tx_size,
void *arg) {
struct estimate_block_intra_args *const args = arg;
VP9_COMP *const cpi = args->cpi;
MACROBLOCK *const x = args->x;
MACROBLOCKD *const xd = &x->e_mbd;
struct macroblock_plane *const p = &x->plane[0];
struct macroblockd_plane *const pd = &xd->plane[0];
const BLOCK_SIZE bsize_tx = txsize_to_bsize[tx_size];
uint8_t *const src_buf_base = p->src.buf;
uint8_t *const dst_buf_base = pd->dst.buf;
const int src_stride = p->src.stride;
const int dst_stride = pd->dst.stride;
RD_COST this_rdc;
(void)block;
p->src.buf = &src_buf_base[4 * (row * src_stride + col)];
pd->dst.buf = &dst_buf_base[4 * (row * dst_stride + col)];
// Use source buffer as an approximation for the fully reconstructed buffer.
vp9_predict_intra_block(xd, b_width_log2_lookup[plane_bsize], tx_size,
args->mode, x->skip_encode ? p->src.buf : pd->dst.buf,
x->skip_encode ? src_stride : dst_stride, pd->dst.buf,
dst_stride, col, row, plane);
if (plane == 0) {
int64_t this_sse = INT64_MAX;
// TODO(jingning): This needs further refactoring.
block_yrd(cpi, x, &this_rdc, &args->skippable, &this_sse, bsize_tx,
VPXMIN(tx_size, TX_16X16), 0);
} else {
unsigned int var = 0;
unsigned int sse = 0;
model_rd_for_sb_uv(cpi, plane_bsize, x, xd, &this_rdc, &var, &sse, plane,
plane);
}
p->src.buf = src_buf_base;
pd->dst.buf = dst_buf_base;
args->rdc->rate += this_rdc.rate;
args->rdc->dist += this_rdc.dist;
}
static const THR_MODES mode_idx[MAX_REF_FRAMES][4] = {
{ THR_DC, THR_V_PRED, THR_H_PRED, THR_TM },
{ THR_NEARESTMV, THR_NEARMV, THR_ZEROMV, THR_NEWMV },
{ THR_NEARESTG, THR_NEARG, THR_ZEROG, THR_NEWG },
{ THR_NEARESTA, THR_NEARA, THR_ZEROA, THR_NEWA },
};
static const PREDICTION_MODE intra_mode_list[] = { DC_PRED, V_PRED, H_PRED,
TM_PRED };
static int mode_offset(const PREDICTION_MODE mode) {
if (mode >= NEARESTMV) {
return INTER_OFFSET(mode);
} else {
switch (mode) {
case DC_PRED: return 0;
case V_PRED: return 1;
case H_PRED: return 2;
case TM_PRED: return 3;
default: return -1;
}
}
}
static INLINE int rd_less_than_thresh_row_mt(int64_t best_rd, int thresh,
const int *const thresh_fact) {
int is_rd_less_than_thresh;
is_rd_less_than_thresh =
best_rd < ((int64_t)thresh * (*thresh_fact) >> 5) || thresh == INT_MAX;
return is_rd_less_than_thresh;
}
static INLINE void update_thresh_freq_fact_row_mt(
VP9_COMP *cpi, TileDataEnc *tile_data, int source_variance,
int thresh_freq_fact_idx, MV_REFERENCE_FRAME ref_frame,
THR_MODES best_mode_idx, PREDICTION_MODE mode) {
THR_MODES thr_mode_idx = mode_idx[ref_frame][mode_offset(mode)];
int freq_fact_idx = thresh_freq_fact_idx + thr_mode_idx;
int *freq_fact = &tile_data->row_base_thresh_freq_fact[freq_fact_idx];
if (thr_mode_idx == best_mode_idx)
*freq_fact -= (*freq_fact >> 4);
else if (cpi->sf.limit_newmv_early_exit && mode == NEWMV &&
ref_frame == LAST_FRAME && source_variance < 5) {
*freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, 32);
} else {
*freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC,
cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT);
}
}
static INLINE void update_thresh_freq_fact(
VP9_COMP *cpi, TileDataEnc *tile_data, int source_variance,
BLOCK_SIZE bsize, MV_REFERENCE_FRAME ref_frame, THR_MODES best_mode_idx,
PREDICTION_MODE mode) {
THR_MODES thr_mode_idx = mode_idx[ref_frame][mode_offset(mode)];
int *freq_fact = &tile_data->thresh_freq_fact[bsize][thr_mode_idx];
if (thr_mode_idx == best_mode_idx)
*freq_fact -= (*freq_fact >> 4);
else if (cpi->sf.limit_newmv_early_exit && mode == NEWMV &&
ref_frame == LAST_FRAME && source_variance < 5) {
*freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC, 32);
} else {
*freq_fact = VPXMIN(*freq_fact + RD_THRESH_INC,
cpi->sf.adaptive_rd_thresh * RD_THRESH_MAX_FACT);
}
}
void vp9_pick_intra_mode(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *rd_cost,
BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) {
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
RD_COST this_rdc, best_rdc;
PREDICTION_MODE this_mode;
struct estimate_block_intra_args args = { cpi, x, DC_PRED, 1, 0 };
const TX_SIZE intra_tx_size =
VPXMIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
MODE_INFO *const mic = xd->mi[0];
int *bmode_costs;
const MODE_INFO *above_mi = xd->above_mi;
const MODE_INFO *left_mi = xd->left_mi;
const PREDICTION_MODE A = vp9_above_block_mode(mic, above_mi, 0);
const PREDICTION_MODE L = vp9_left_block_mode(mic, left_mi, 0);
bmode_costs = cpi->y_mode_costs[A][L];
(void)ctx;
vp9_rd_cost_reset(&best_rdc);
vp9_rd_cost_reset(&this_rdc);
mi->ref_frame[0] = INTRA_FRAME;
// Initialize interp_filter here so we do not have to check for inter block
// modes in get_pred_context_switchable_interp()
mi->interp_filter = SWITCHABLE_FILTERS;
mi->mv[0].as_int = INVALID_MV;
mi->uv_mode = DC_PRED;
memset(x->skip_txfm, 0, sizeof(x->skip_txfm));
// Change the limit of this loop to add other intra prediction
// mode tests.
for (this_mode = DC_PRED; this_mode <= H_PRED; ++this_mode) {
this_rdc.dist = this_rdc.rate = 0;
args.mode = this_mode;
args.skippable = 1;
args.rdc = &this_rdc;
mi->tx_size = intra_tx_size;
vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra,
&args);
if (args.skippable) {
x->skip_txfm[0] = SKIP_TXFM_AC_DC;
this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 1);
} else {
x->skip_txfm[0] = SKIP_TXFM_NONE;
this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 0);
}
this_rdc.rate += bmode_costs[this_mode];
this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
if (this_rdc.rdcost < best_rdc.rdcost) {
best_rdc = this_rdc;
mi->mode = this_mode;
}
}
*rd_cost = best_rdc;
}
static void init_ref_frame_cost(VP9_COMMON *const cm, MACROBLOCKD *const xd,
int ref_frame_cost[MAX_REF_FRAMES]) {
vpx_prob intra_inter_p = vp9_get_intra_inter_prob(cm, xd);
vpx_prob ref_single_p1 = vp9_get_pred_prob_single_ref_p1(cm, xd);
vpx_prob ref_single_p2 = vp9_get_pred_prob_single_ref_p2(cm, xd);
ref_frame_cost[INTRA_FRAME] = vp9_cost_bit(intra_inter_p, 0);
ref_frame_cost[LAST_FRAME] = ref_frame_cost[GOLDEN_FRAME] =
ref_frame_cost[ALTREF_FRAME] = vp9_cost_bit(intra_inter_p, 1);
ref_frame_cost[LAST_FRAME] += vp9_cost_bit(ref_single_p1, 0);
ref_frame_cost[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p1, 1);
ref_frame_cost[ALTREF_FRAME] += vp9_cost_bit(ref_single_p1, 1);
ref_frame_cost[GOLDEN_FRAME] += vp9_cost_bit(ref_single_p2, 0);
ref_frame_cost[ALTREF_FRAME] += vp9_cost_bit(ref_single_p2, 1);
}
typedef struct {
MV_REFERENCE_FRAME ref_frame;
PREDICTION_MODE pred_mode;
} REF_MODE;
#define RT_INTER_MODES 12
static const REF_MODE ref_mode_set[RT_INTER_MODES] = {
{ LAST_FRAME, ZEROMV }, { LAST_FRAME, NEARESTMV },
{ GOLDEN_FRAME, ZEROMV }, { LAST_FRAME, NEARMV },
{ LAST_FRAME, NEWMV }, { GOLDEN_FRAME, NEARESTMV },
{ GOLDEN_FRAME, NEARMV }, { GOLDEN_FRAME, NEWMV },
{ ALTREF_FRAME, ZEROMV }, { ALTREF_FRAME, NEARESTMV },
{ ALTREF_FRAME, NEARMV }, { ALTREF_FRAME, NEWMV }
};
#define RT_INTER_MODES_SVC 8
static const REF_MODE ref_mode_set_svc[RT_INTER_MODES_SVC] = {
{ LAST_FRAME, ZEROMV }, { LAST_FRAME, NEARESTMV },
{ LAST_FRAME, NEARMV }, { GOLDEN_FRAME, ZEROMV },
{ GOLDEN_FRAME, NEARESTMV }, { GOLDEN_FRAME, NEARMV },
{ LAST_FRAME, NEWMV }, { GOLDEN_FRAME, NEWMV }
};
static INLINE void find_predictors(
VP9_COMP *cpi, MACROBLOCK *x, MV_REFERENCE_FRAME ref_frame,
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES],
int const_motion[MAX_REF_FRAMES], int *ref_frame_skip_mask,
const int flag_list[4], TileDataEnc *tile_data, int mi_row, int mi_col,
struct buf_2d yv12_mb[4][MAX_MB_PLANE], BLOCK_SIZE bsize,
int force_skip_low_temp_var, int comp_pred_allowed) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCKD *const xd = &x->e_mbd;
const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
TileInfo *const tile_info = &tile_data->tile_info;
// TODO(jingning) placeholder for inter-frame non-RD mode decision.
x->pred_mv_sad[ref_frame] = INT_MAX;
frame_mv[NEWMV][ref_frame].as_int = INVALID_MV;
frame_mv[ZEROMV][ref_frame].as_int = 0;
// this needs various further optimizations. to be continued..
if ((cpi->ref_frame_flags & flag_list[ref_frame]) && (yv12 != NULL)) {
int_mv *const candidates = x->mbmi_ext->ref_mvs[ref_frame];
const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf;
vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf, sf);
if (cm->use_prev_frame_mvs || comp_pred_allowed) {
vp9_find_mv_refs(cm, xd, xd->mi[0], ref_frame, candidates, mi_row, mi_col,
x->mbmi_ext->mode_context);
} else {
const_motion[ref_frame] =
mv_refs_rt(cpi, cm, x, xd, tile_info, xd->mi[0], ref_frame,
candidates, &frame_mv[NEWMV][ref_frame], mi_row, mi_col,
(int)(cpi->svc.use_base_mv && cpi->svc.spatial_layer_id));
}
vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
&frame_mv[NEARESTMV][ref_frame],
&frame_mv[NEARMV][ref_frame]);
// Early exit for golden frame if force_skip_low_temp_var is set.
if (!vp9_is_scaled(sf) && bsize >= BLOCK_8X8 &&
!(force_skip_low_temp_var && ref_frame == GOLDEN_FRAME)) {
vp9_mv_pred(cpi, x, yv12_mb[ref_frame][0].buf, yv12->y_stride, ref_frame,
bsize);
}
} else {
*ref_frame_skip_mask |= (1 << ref_frame);
}
}
static void vp9_NEWMV_diff_bias(const NOISE_ESTIMATE *ne, MACROBLOCKD *xd,
PREDICTION_MODE this_mode, RD_COST *this_rdc,
BLOCK_SIZE bsize, int mv_row, int mv_col,
int is_last_frame, int lowvar_highsumdiff,
int is_skin) {
// Bias against MVs associated with NEWMV mode that are very different from
// top/left neighbors.
if (this_mode == NEWMV) {
int al_mv_average_row;
int al_mv_average_col;
int left_row, left_col;
int row_diff, col_diff;
int above_mv_valid = 0;
int left_mv_valid = 0;
int above_row = 0;
int above_col = 0;
if (xd->above_mi) {
above_mv_valid = xd->above_mi->mv[0].as_int != INVALID_MV;
above_row = xd->above_mi->mv[0].as_mv.row;
above_col = xd->above_mi->mv[0].as_mv.col;
}
if (xd->left_mi) {
left_mv_valid = xd->left_mi->mv[0].as_int != INVALID_MV;
left_row = xd->left_mi->mv[0].as_mv.row;
left_col = xd->left_mi->mv[0].as_mv.col;
}
if (above_mv_valid && left_mv_valid) {
al_mv_average_row = (above_row + left_row + 1) >> 1;
al_mv_average_col = (above_col + left_col + 1) >> 1;
} else if (above_mv_valid) {
al_mv_average_row = above_row;
al_mv_average_col = above_col;
} else if (left_mv_valid) {
al_mv_average_row = left_row;
al_mv_average_col = left_col;
} else {
al_mv_average_row = al_mv_average_col = 0;
}
row_diff = (al_mv_average_row - mv_row);
col_diff = (al_mv_average_col - mv_col);
if (row_diff > 48 || row_diff < -48 || col_diff > 48 || col_diff < -48) {
if (bsize > BLOCK_32X32)
this_rdc->rdcost = this_rdc->rdcost << 1;
else
this_rdc->rdcost = 3 * this_rdc->rdcost >> 1;
}
}
// If noise estimation is enabled, and estimated level is above threshold,
// add a bias to LAST reference with small motion, for large blocks.
if (ne->enabled && ne->level >= kMedium && bsize >= BLOCK_32X32 &&
is_last_frame && mv_row < 8 && mv_row > -8 && mv_col < 8 && mv_col > -8)
this_rdc->rdcost = 7 * (this_rdc->rdcost >> 3);
else if (lowvar_highsumdiff && !is_skin && bsize >= BLOCK_16X16 &&
is_last_frame && mv_row < 16 && mv_row > -16 && mv_col < 16 &&
mv_col > -16)
this_rdc->rdcost = 7 * (this_rdc->rdcost >> 3);
}
#if CONFIG_VP9_TEMPORAL_DENOISING
static void vp9_pickmode_ctx_den_update(
VP9_PICKMODE_CTX_DEN *ctx_den, int64_t zero_last_cost_orig,
int ref_frame_cost[MAX_REF_FRAMES],
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES], int reuse_inter_pred,
BEST_PICKMODE *bp) {
ctx_den->zero_last_cost_orig = zero_last_cost_orig;
ctx_den->ref_frame_cost = ref_frame_cost;
ctx_den->frame_mv = frame_mv;
ctx_den->reuse_inter_pred = reuse_inter_pred;
ctx_den->best_tx_size = bp->best_tx_size;
ctx_den->best_mode = bp->best_mode;
ctx_den->best_ref_frame = bp->best_ref_frame;
ctx_den->best_pred_filter = bp->best_pred_filter;
ctx_den->best_mode_skip_txfm = bp->best_mode_skip_txfm;
}
static void recheck_zeromv_after_denoising(
VP9_COMP *cpi, MODE_INFO *const mi, MACROBLOCK *x, MACROBLOCKD *const xd,
VP9_DENOISER_DECISION decision, VP9_PICKMODE_CTX_DEN *ctx_den,
struct buf_2d yv12_mb[4][MAX_MB_PLANE], RD_COST *best_rdc, BLOCK_SIZE bsize,
int mi_row, int mi_col) {
// If INTRA or GOLDEN reference was selected, re-evaluate ZEROMV on
// denoised result. Only do this under noise conditions, and if rdcost of
// ZEROMV onoriginal source is not significantly higher than rdcost of best
// mode.
if (cpi->noise_estimate.enabled && cpi->noise_estimate.level > kLow &&
ctx_den->zero_last_cost_orig < (best_rdc->rdcost << 3) &&
((ctx_den->best_ref_frame == INTRA_FRAME && decision >= FILTER_BLOCK) ||
(ctx_den->best_ref_frame == GOLDEN_FRAME &&
cpi->svc.number_spatial_layers == 1 &&
decision == FILTER_ZEROMV_BLOCK))) {
// Check if we should pick ZEROMV on denoised signal.
int rate = 0;
int64_t dist = 0;
uint32_t var_y = UINT_MAX;
uint32_t sse_y = UINT_MAX;
RD_COST this_rdc;
mi->mode = ZEROMV;
mi->ref_frame[0] = LAST_FRAME;
mi->ref_frame[1] = NONE;
mi->mv[0].as_int = 0;
mi->interp_filter = EIGHTTAP;
if (cpi->sf.default_interp_filter == BILINEAR) mi->interp_filter = BILINEAR;
xd->plane[0].pre[0] = yv12_mb[LAST_FRAME][0];
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
model_rd_for_sb_y(cpi, bsize, x, xd, &rate, &dist, &var_y, &sse_y);
this_rdc.rate = rate + ctx_den->ref_frame_cost[LAST_FRAME] +
cpi->inter_mode_cost[x->mbmi_ext->mode_context[LAST_FRAME]]
[INTER_OFFSET(ZEROMV)];
this_rdc.dist = dist;
this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, rate, dist);
// Don't switch to ZEROMV if the rdcost for ZEROMV on denoised source
// is higher than best_ref mode (on original source).
if (this_rdc.rdcost > best_rdc->rdcost) {
this_rdc = *best_rdc;
mi->mode = ctx_den->best_mode;
mi->ref_frame[0] = ctx_den->best_ref_frame;
mi->interp_filter = ctx_den->best_pred_filter;
if (ctx_den->best_ref_frame == INTRA_FRAME) {
mi->mv[0].as_int = INVALID_MV;
mi->interp_filter = SWITCHABLE_FILTERS;
} else if (ctx_den->best_ref_frame == GOLDEN_FRAME) {
mi->mv[0].as_int =
ctx_den->frame_mv[ctx_den->best_mode][ctx_den->best_ref_frame]
.as_int;
if (ctx_den->reuse_inter_pred) {
xd->plane[0].pre[0] = yv12_mb[GOLDEN_FRAME][0];
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
}
}
mi->tx_size = ctx_den->best_tx_size;
x->skip_txfm[0] = ctx_den->best_mode_skip_txfm;
} else {
ctx_den->best_ref_frame = LAST_FRAME;
*best_rdc = this_rdc;
}
}
}
#endif // CONFIG_VP9_TEMPORAL_DENOISING
static INLINE int get_force_skip_low_temp_var(uint8_t *variance_low, int mi_row,
int mi_col, BLOCK_SIZE bsize) {
const int i = (mi_row & 0x7) >> 1;
const int j = (mi_col & 0x7) >> 1;
int force_skip_low_temp_var = 0;
// Set force_skip_low_temp_var based on the block size and block offset.
if (bsize == BLOCK_64X64) {
force_skip_low_temp_var = variance_low[0];
} else if (bsize == BLOCK_64X32) {
if (!(mi_col & 0x7) && !(mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[1];
} else if (!(mi_col & 0x7) && (mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[2];
}
} else if (bsize == BLOCK_32X64) {
if (!(mi_col & 0x7) && !(mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[3];
} else if ((mi_col & 0x7) && !(mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[4];
}
} else if (bsize == BLOCK_32X32) {
if (!(mi_col & 0x7) && !(mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[5];
} else if ((mi_col & 0x7) && !(mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[6];
} else if (!(mi_col & 0x7) && (mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[7];
} else if ((mi_col & 0x7) && (mi_row & 0x7)) {
force_skip_low_temp_var = variance_low[8];
}
} else if (bsize == BLOCK_16X16) {
force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]];
} else if (bsize == BLOCK_32X16) {
// The col shift index for the second 16x16 block.
const int j2 = ((mi_col + 2) & 0x7) >> 1;
// Only if each 16x16 block inside has low temporal variance.
force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]] &&
variance_low[pos_shift_16x16[i][j2]];
} else if (bsize == BLOCK_16X32) {
// The row shift index for the second 16x16 block.
const int i2 = ((mi_row + 2) & 0x7) >> 1;
force_skip_low_temp_var = variance_low[pos_shift_16x16[i][j]] &&
variance_low[pos_shift_16x16[i2][j]];
}
return force_skip_low_temp_var;
}
static void search_filter_ref(VP9_COMP *cpi, MACROBLOCK *x, RD_COST *this_rdc,
int mi_row, int mi_col, PRED_BUFFER *tmp,
BLOCK_SIZE bsize, int reuse_inter_pred,
PRED_BUFFER **this_mode_pred, unsigned int *var_y,
unsigned int *sse_y, int force_smooth_filter) {
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
struct macroblockd_plane *const pd = &xd->plane[0];
const int bw = num_4x4_blocks_wide_lookup[bsize] << 2;
int pf_rate[3] = { 0 };
int64_t pf_dist[3] = { 0 };
int curr_rate[3] = { 0 };
unsigned int pf_var[3] = { 0 };
unsigned int pf_sse[3] = { 0 };
TX_SIZE pf_tx_size[3] = { 0 };
int64_t best_cost = INT64_MAX;
INTERP_FILTER best_filter = SWITCHABLE, filter;
PRED_BUFFER *current_pred = *this_mode_pred;
uint8_t skip_txfm = SKIP_TXFM_NONE;
INTERP_FILTER filter_start = force_smooth_filter ? EIGHTTAP_SMOOTH : EIGHTTAP;
for (filter = filter_start; filter <= EIGHTTAP_SMOOTH; ++filter) {
int64_t cost;
mi->interp_filter = filter;
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
model_rd_for_sb_y(cpi, bsize, x, xd, &pf_rate[filter], &pf_dist[filter],
&pf_var[filter], &pf_sse[filter]);
curr_rate[filter] = pf_rate[filter];
pf_rate[filter] += vp9_get_switchable_rate(cpi, xd);
cost = RDCOST(x->rdmult, x->rddiv, pf_rate[filter], pf_dist[filter]);
pf_tx_size[filter] = mi->tx_size;
if (cost < best_cost) {
best_filter = filter;
best_cost = cost;
skip_txfm = x->skip_txfm[0];
if (reuse_inter_pred) {
if (*this_mode_pred != current_pred) {
free_pred_buffer(*this_mode_pred);
*this_mode_pred = current_pred;
}
current_pred = &tmp[get_pred_buffer(tmp, 3)];
pd->dst.buf = current_pred->data;
pd->dst.stride = bw;
}
}
}
if (reuse_inter_pred && *this_mode_pred != current_pred)
free_pred_buffer(current_pred);
mi->interp_filter = best_filter;
mi->tx_size = pf_tx_size[best_filter];
this_rdc->rate = curr_rate[best_filter];
this_rdc->dist = pf_dist[best_filter];
*var_y = pf_var[best_filter];
*sse_y = pf_sse[best_filter];
x->skip_txfm[0] = skip_txfm;
if (reuse_inter_pred) {
pd->dst.buf = (*this_mode_pred)->data;
pd->dst.stride = (*this_mode_pred)->stride;
}
}
static int search_new_mv(VP9_COMP *cpi, MACROBLOCK *x,
int_mv frame_mv[][MAX_REF_FRAMES],
MV_REFERENCE_FRAME ref_frame, int gf_temporal_ref,
BLOCK_SIZE bsize, int mi_row, int mi_col,
int best_pred_sad, int *rate_mv,
unsigned int best_sse_sofar, RD_COST *best_rdc) {
SVC *const svc = &cpi->svc;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
SPEED_FEATURES *const sf = &cpi->sf;
if (ref_frame > LAST_FRAME && gf_temporal_ref &&
cpi->oxcf.rc_mode == VPX_CBR) {
int tmp_sad;
uint32_t dis;
int cost_list[5] = { INT_MAX, INT_MAX, INT_MAX, INT_MAX, INT_MAX };
if (bsize < BLOCK_16X16) return -1;
tmp_sad = vp9_int_pro_motion_estimation(
cpi, x, bsize, mi_row, mi_col,
&x->mbmi_ext->ref_mvs[ref_frame][0].as_mv);
if (tmp_sad > x->pred_mv_sad[LAST_FRAME]) return -1;
if (tmp_sad + (num_pels_log2_lookup[bsize] << 4) > best_pred_sad) return -1;
frame_mv[NEWMV][ref_frame].as_int = mi->mv[0].as_int;
*rate_mv = vp9_mv_bit_cost(&frame_mv[NEWMV][ref_frame].as_mv,
&x->mbmi_ext->ref_mvs[ref_frame][0].as_mv,
x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
frame_mv[NEWMV][ref_frame].as_mv.row >>= 3;
frame_mv[NEWMV][ref_frame].as_mv.col >>= 3;
cpi->find_fractional_mv_step(
x, &frame_mv[NEWMV][ref_frame].as_mv,
&x->mbmi_ext->ref_mvs[ref_frame][0].as_mv,
cpi->common.allow_high_precision_mv, x->errorperbit,
&cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop,
cpi->sf.mv.subpel_search_level, cond_cost_list(cpi, cost_list),
x->nmvjointcost, x->mvcost, &dis, &x->pred_sse[ref_frame], NULL, 0, 0,
cpi->sf.use_accurate_subpel_search);
} else if (svc->use_base_mv && svc->spatial_layer_id) {
if (frame_mv[NEWMV][ref_frame].as_int != INVALID_MV) {
const int pre_stride = xd->plane[0].pre[0].stride;
unsigned int base_mv_sse = UINT_MAX;
int scale = (cpi->rc.avg_frame_low_motion > 60) ? 2 : 4;
const uint8_t *const pre_buf =
xd->plane[0].pre[0].buf +
(frame_mv[NEWMV][ref_frame].as_mv.row >> 3) * pre_stride +
(frame_mv[NEWMV][ref_frame].as_mv.col >> 3);
cpi->fn_ptr[bsize].vf(x->plane[0].src.buf, x->plane[0].src.stride,
pre_buf, pre_stride, &base_mv_sse);
// Exit NEWMV search if base_mv is (0,0) && bsize < BLOCK_16x16,
// for SVC encoding.
if (cpi->use_svc && svc->use_base_mv && bsize < BLOCK_16X16 &&
frame_mv[NEWMV][ref_frame].as_mv.row == 0 &&
frame_mv[NEWMV][ref_frame].as_mv.col == 0)
return -1;
// Exit NEWMV search if base_mv_sse is large.
if (sf->base_mv_aggressive && base_mv_sse > (best_sse_sofar << scale))
return -1;
if (base_mv_sse < (best_sse_sofar << 1)) {
// Base layer mv is good.
// Exit NEWMV search if the base_mv is (0, 0) and sse is low, since
// (0, 0) mode is already tested.
unsigned int base_mv_sse_normalized =
base_mv_sse >>
(b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]);
if (sf->base_mv_aggressive && base_mv_sse <= best_sse_sofar &&
base_mv_sse_normalized < 400 &&
frame_mv[NEWMV][ref_frame].as_mv.row == 0 &&
frame_mv[NEWMV][ref_frame].as_mv.col == 0)
return -1;
if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
&frame_mv[NEWMV][ref_frame], rate_mv,
best_rdc->rdcost, 1)) {
return -1;
}
} else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
&frame_mv[NEWMV][ref_frame], rate_mv,
best_rdc->rdcost, 0)) {
return -1;
}
} else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
&frame_mv[NEWMV][ref_frame], rate_mv,
best_rdc->rdcost, 0)) {
return -1;
}
} else if (!combined_motion_search(cpi, x, bsize, mi_row, mi_col,
&frame_mv[NEWMV][ref_frame], rate_mv,
best_rdc->rdcost, 0)) {
return -1;
}
return 0;
}
static INLINE void init_best_pickmode(BEST_PICKMODE *bp) {
bp->best_mode = ZEROMV;
bp->best_ref_frame = LAST_FRAME;
bp->best_tx_size = TX_SIZES;
bp->best_intra_tx_size = TX_SIZES;
bp->best_pred_filter = EIGHTTAP;
bp->best_mode_skip_txfm = SKIP_TXFM_NONE;
bp->best_second_ref_frame = NONE;
bp->best_pred = NULL;
}
void vp9_pick_inter_mode(VP9_COMP *cpi, MACROBLOCK *x, TileDataEnc *tile_data,
int mi_row, int mi_col, RD_COST *rd_cost,
BLOCK_SIZE bsize, PICK_MODE_CONTEXT *ctx) {
VP9_COMMON *const cm = &cpi->common;
SPEED_FEATURES *const sf = &cpi->sf;
SVC *const svc = &cpi->svc;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
struct macroblockd_plane *const pd = &xd->plane[0];
BEST_PICKMODE best_pickmode;
MV_REFERENCE_FRAME ref_frame;
MV_REFERENCE_FRAME usable_ref_frame, second_ref_frame;
int_mv frame_mv[MB_MODE_COUNT][MAX_REF_FRAMES];
uint8_t mode_checked[MB_MODE_COUNT][MAX_REF_FRAMES];
struct buf_2d yv12_mb[4][MAX_MB_PLANE];
static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
VP9_ALT_FLAG };
RD_COST this_rdc, best_rdc;
// var_y and sse_y are saved to be used in skipping checking
unsigned int var_y = UINT_MAX;
unsigned int sse_y = UINT_MAX;
const int intra_cost_penalty =
vp9_get_intra_cost_penalty(cpi, bsize, cm->base_qindex, cm->y_dc_delta_q);
int64_t inter_mode_thresh =
RDCOST(x->rdmult, x->rddiv, intra_cost_penalty, 0);
const int *const rd_threshes = cpi->rd.threshes[mi->segment_id][bsize];
const int sb_row = mi_row >> MI_BLOCK_SIZE_LOG2;
int thresh_freq_fact_idx = (sb_row * BLOCK_SIZES + bsize) * MAX_MODES;
const int *const rd_thresh_freq_fact =
(cpi->sf.adaptive_rd_thresh_row_mt)
? &(tile_data->row_base_thresh_freq_fact[thresh_freq_fact_idx])
: tile_data->thresh_freq_fact[bsize];
INTERP_FILTER filter_ref;
const int bsl = mi_width_log2_lookup[bsize];
const int pred_filter_search =
cm->interp_filter == SWITCHABLE
? (((mi_row + mi_col) >> bsl) +
get_chessboard_index(cm->current_video_frame)) &
0x1
: 0;
int const_motion[MAX_REF_FRAMES] = { 0 };
const int bh = num_4x4_blocks_high_lookup[bsize] << 2;
const int bw = num_4x4_blocks_wide_lookup[bsize] << 2;
// For speed 6, the result of interp filter is reused later in actual encoding
// process.
// tmp[3] points to dst buffer, and the other 3 point to allocated buffers.
PRED_BUFFER tmp[4];
DECLARE_ALIGNED(16, uint8_t, pred_buf[3 * 64 * 64]);
#if CONFIG_VP9_HIGHBITDEPTH
DECLARE_ALIGNED(16, uint16_t, pred_buf_16[3 * 64 * 64]);
#endif
struct buf_2d orig_dst = pd->dst;
PRED_BUFFER *this_mode_pred = NULL;
const int pixels_in_block = bh * bw;
int reuse_inter_pred = cpi->sf.reuse_inter_pred_sby && ctx->pred_pixel_ready;
int ref_frame_skip_mask = 0;
int idx;
int best_pred_sad = INT_MAX;
int best_early_term = 0;
int ref_frame_cost[MAX_REF_FRAMES];
int svc_force_zero_mode[3] = { 0 };
int perform_intra_pred = 1;
int use_golden_nonzeromv = 1;
int force_skip_low_temp_var = 0;
int skip_ref_find_pred[4] = { 0 };
unsigned int sse_zeromv_normalized = UINT_MAX;
unsigned int best_sse_sofar = UINT_MAX;
int gf_temporal_ref = 0;
int force_test_gf_zeromv = 0;
#if CONFIG_VP9_TEMPORAL_DENOISING
VP9_PICKMODE_CTX_DEN ctx_den;
int64_t zero_last_cost_orig = INT64_MAX;
int denoise_svc_pickmode = 1;
#endif
INTERP_FILTER filter_gf_svc = EIGHTTAP;
MV_REFERENCE_FRAME inter_layer_ref = GOLDEN_FRAME;
const struct segmentation *const seg = &cm->seg;
int comp_modes = 0;
int num_inter_modes = (cpi->use_svc) ? RT_INTER_MODES_SVC : RT_INTER_MODES;
int flag_svc_subpel = 0;
int svc_mv_col = 0;
int svc_mv_row = 0;
int no_scaling = 0;
unsigned int thresh_svc_skip_golden = 500;
unsigned int thresh_skip_golden = 500;
int force_smooth_filter =
(cpi->oxcf.speed >= 8 && cm->width * cm->height <= 320 * 240 &&
cm->base_qindex >= 200)
? 1
: 0;
int scene_change_detected =
cpi->rc.high_source_sad ||
(cpi->use_svc && cpi->svc.high_source_sad_superframe);
init_best_pickmode(&best_pickmode);
x->encode_breakout = seg->enabled
? cpi->segment_encode_breakout[mi->segment_id]
: cpi->encode_breakout;
x->source_variance = UINT_MAX;
if (cpi->sf.default_interp_filter == BILINEAR) {
best_pickmode.best_pred_filter = BILINEAR;
filter_gf_svc = BILINEAR;
}
if (cpi->use_svc && svc->spatial_layer_id > 0) {
int layer =
LAYER_IDS_TO_IDX(svc->spatial_layer_id - 1, svc->temporal_layer_id,
svc->number_temporal_layers);
LAYER_CONTEXT *const lc = &svc->layer_context[layer];
if (lc->scaling_factor_num == lc->scaling_factor_den) no_scaling = 1;
}
if (svc->spatial_layer_id > 0 &&
(svc->high_source_sad_superframe || no_scaling))
thresh_svc_skip_golden = 0;
// Lower the skip threshold if lower spatial layer is better quality relative
// to current layer.
else if (svc->spatial_layer_id > 0 && cm->base_qindex > 150 &&
cm->base_qindex > svc->lower_layer_qindex + 15)
thresh_svc_skip_golden = 100;
// Increase skip threshold if lower spatial layer is lower quality relative
// to current layer.
else if (svc->spatial_layer_id > 0 && cm->base_qindex < 140 &&
cm->base_qindex < svc->lower_layer_qindex - 20)
thresh_svc_skip_golden = 1000;
if (!cpi->use_svc ||
(svc->use_gf_temporal_ref_current_layer &&
!svc->layer_context[svc->temporal_layer_id].is_key_frame)) {
struct scale_factors *const sf_last = &cm->frame_refs[LAST_FRAME - 1].sf;
struct scale_factors *const sf_golden =
&cm->frame_refs[GOLDEN_FRAME - 1].sf;
gf_temporal_ref = 1;
// For temporal long term prediction, check that the golden reference
// is same scale as last reference, otherwise disable.
if ((sf_last->x_scale_fp != sf_golden->x_scale_fp) ||
(sf_last->y_scale_fp != sf_golden->y_scale_fp)) {
gf_temporal_ref = 0;
} else {
if (cpi->rc.avg_frame_low_motion > 70)
thresh_svc_skip_golden = 500;
else
thresh_svc_skip_golden = 0;
}
}
init_ref_frame_cost(cm, xd, ref_frame_cost);
memset(&mode_checked[0][0], 0, MB_MODE_COUNT * MAX_REF_FRAMES);
if (reuse_inter_pred) {
int i;
for (i = 0; i < 3; i++) {
#if CONFIG_VP9_HIGHBITDEPTH
if (cm->use_highbitdepth)
tmp[i].data = CONVERT_TO_BYTEPTR(&pred_buf_16[pixels_in_block * i]);
else
tmp[i].data = &pred_buf[pixels_in_block * i];
#else
tmp[i].data = &pred_buf[pixels_in_block * i];
#endif // CONFIG_VP9_HIGHBITDEPTH
tmp[i].stride = bw;
tmp[i].in_use = 0;
}
tmp[3].data = pd->dst.buf;
tmp[3].stride = pd->dst.stride;
tmp[3].in_use = 0;
}
x->skip_encode = cpi->sf.skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
x->skip = 0;
// Instead of using vp9_get_pred_context_switchable_interp(xd) to assign
// filter_ref, we use a less strict condition on assigning filter_ref.
// This is to reduce the probabily of entering the flow of not assigning
// filter_ref and then skip filter search.
filter_ref = cm->interp_filter;
if (cpi->sf.default_interp_filter != BILINEAR) {
if (xd->above_mi && is_inter_block(xd->above_mi))
filter_ref = xd->above_mi->interp_filter;
else if (xd->left_mi && is_inter_block(xd->left_mi))
filter_ref = xd->left_mi->interp_filter;
}
// initialize mode decisions
vp9_rd_cost_reset(&best_rdc);
vp9_rd_cost_reset(rd_cost);
mi->sb_type = bsize;
mi->ref_frame[0] = NONE;
mi->ref_frame[1] = NONE;
mi->tx_size =
VPXMIN(max_txsize_lookup[bsize], tx_mode_to_biggest_tx_size[cm->tx_mode]);
if (sf->short_circuit_flat_blocks || sf->limit_newmv_early_exit) {
#if CONFIG_VP9_HIGHBITDEPTH
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH)
x->source_variance = vp9_high_get_sby_perpixel_variance(
cpi, &x->plane[0].src, bsize, xd->bd);
else
#endif // CONFIG_VP9_HIGHBITDEPTH
x->source_variance =
vp9_get_sby_perpixel_variance(cpi, &x->plane[0].src, bsize);
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN &&
cpi->oxcf.aq_mode == CYCLIC_REFRESH_AQ && mi->segment_id > 0 &&
x->zero_temp_sad_source && x->source_variance == 0) {
mi->segment_id = 0;
vp9_init_plane_quantizers(cpi, x);
}
}
#if CONFIG_VP9_TEMPORAL_DENOISING
if (cpi->oxcf.noise_sensitivity > 0) {
if (cpi->use_svc) denoise_svc_pickmode = vp9_denoise_svc_non_key(cpi);
if (cpi->denoiser.denoising_level > kDenLowLow && denoise_svc_pickmode)
vp9_denoiser_reset_frame_stats(ctx);
}
#endif
if (cpi->rc.frames_since_golden == 0 && gf_temporal_ref &&
!cpi->rc.alt_ref_gf_group && !cpi->rc.last_frame_is_src_altref) {
usable_ref_frame = LAST_FRAME;
} else {
usable_ref_frame = GOLDEN_FRAME;
}
if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) {
if (cpi->rc.alt_ref_gf_group || cpi->rc.is_src_frame_alt_ref)
usable_ref_frame = ALTREF_FRAME;
if (cpi->rc.is_src_frame_alt_ref) {
skip_ref_find_pred[LAST_FRAME] = 1;
skip_ref_find_pred[GOLDEN_FRAME] = 1;
}
if (!cm->show_frame) {
if (cpi->rc.frames_since_key == 1) {
usable_ref_frame = LAST_FRAME;
skip_ref_find_pred[GOLDEN_FRAME] = 1;
skip_ref_find_pred[ALTREF_FRAME] = 1;
}
}
}
// For svc mode, on spatial_layer_id > 0: if the reference has different scale
// constrain the inter mode to only test zero motion.
if (cpi->use_svc && svc->force_zero_mode_spatial_ref &&
svc->spatial_layer_id > 0 && !gf_temporal_ref) {
if (cpi->ref_frame_flags & flag_list[LAST_FRAME]) {
struct scale_factors *const sf = &cm->frame_refs[LAST_FRAME - 1].sf;
if (vp9_is_scaled(sf)) {
svc_force_zero_mode[LAST_FRAME - 1] = 1;
inter_layer_ref = LAST_FRAME;
}
}
if (cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) {
struct scale_factors *const sf = &cm->frame_refs[GOLDEN_FRAME - 1].sf;
if (vp9_is_scaled(sf)) {
svc_force_zero_mode[GOLDEN_FRAME - 1] = 1;
inter_layer_ref = GOLDEN_FRAME;
}
}
}
if (cpi->sf.short_circuit_low_temp_var) {
force_skip_low_temp_var =
get_force_skip_low_temp_var(&x->variance_low[0], mi_row, mi_col, bsize);
// If force_skip_low_temp_var is set, and for short circuit mode = 1 and 3,
// skip golden reference.
if ((cpi->sf.short_circuit_low_temp_var == 1 ||
cpi->sf.short_circuit_low_temp_var == 3) &&
force_skip_low_temp_var) {
usable_ref_frame = LAST_FRAME;
}
}
if (sf->disable_golden_ref && (x->content_state_sb != kVeryHighSad ||
cpi->rc.avg_frame_low_motion < 60))
usable_ref_frame = LAST_FRAME;
if (!((cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) &&
!svc_force_zero_mode[GOLDEN_FRAME - 1] && !force_skip_low_temp_var))
use_golden_nonzeromv = 0;
if (cpi->oxcf.speed >= 8 && !cpi->use_svc &&
((cpi->rc.frames_since_golden + 1) < x->last_sb_high_content ||
x->last_sb_high_content > 40 || cpi->rc.frames_since_golden > 120))
usable_ref_frame = LAST_FRAME;
// Compound prediction modes: (0,0) on LAST/GOLDEN and ARF.
if (cm->reference_mode == REFERENCE_MODE_SELECT &&
cpi->sf.use_compound_nonrd_pickmode && usable_ref_frame == ALTREF_FRAME)
comp_modes = 2;
// If the segment reference frame feature is enabled and it's set to GOLDEN
// reference, then make sure we don't skip checking GOLDEN, this is to
// prevent possibility of not picking any mode.
if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME) &&
get_segdata(seg, mi->segment_id, SEG_LVL_REF_FRAME) == GOLDEN_FRAME) {
usable_ref_frame = GOLDEN_FRAME;
skip_ref_find_pred[GOLDEN_FRAME] = 0;
thresh_svc_skip_golden = 0;
}
for (ref_frame = LAST_FRAME; ref_frame <= usable_ref_frame; ++ref_frame) {
// Skip find_predictor if the reference frame is not in the
// ref_frame_flags (i.e., not used as a reference for this frame).
skip_ref_find_pred[ref_frame] =
!(cpi->ref_frame_flags & flag_list[ref_frame]);
if (!skip_ref_find_pred[ref_frame]) {
find_predictors(cpi, x, ref_frame, frame_mv, const_motion,
&ref_frame_skip_mask, flag_list, tile_data, mi_row,
mi_col, yv12_mb, bsize, force_skip_low_temp_var,
comp_modes > 0);
}
}
if (cpi->use_svc || cpi->oxcf.speed <= 7 || bsize < BLOCK_32X32)
x->sb_use_mv_part = 0;
// Set the flag_svc_subpel to 1 for SVC if the lower spatial layer used
// an averaging filter for downsampling (phase = 8). If so, we will test
// a nonzero motion mode on the spatial reference.
// The nonzero motion is half pixel shifted to left and top (-4, -4).
if (cpi->use_svc && svc->spatial_layer_id > 0 &&
svc_force_zero_mode[inter_layer_ref - 1] &&
svc->downsample_filter_phase[svc->spatial_layer_id - 1] == 8 &&
!gf_temporal_ref) {
svc_mv_col = -4;
svc_mv_row = -4;
flag_svc_subpel = 1;
}
// For SVC with quality layers, when QP of lower layer is lower
// than current layer: force check of GF-ZEROMV before early exit
// due to skip flag.
if (svc->spatial_layer_id > 0 && no_scaling &&
(cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) &&
cm->base_qindex > svc->lower_layer_qindex + 10)
force_test_gf_zeromv = 1;
for (idx = 0; idx < num_inter_modes + comp_modes; ++idx) {
int rate_mv = 0;
int mode_rd_thresh;
int mode_index;
int i;
int64_t this_sse;
int is_skippable;
int this_early_term = 0;
int rd_computed = 0;
int flag_preduv_computed[2] = { 0 };
int inter_mv_mode = 0;
int skip_this_mv = 0;
int comp_pred = 0;
int force_mv_inter_layer = 0;
PREDICTION_MODE this_mode;
second_ref_frame = NONE;
if (idx < num_inter_modes) {
this_mode = ref_mode_set[idx].pred_mode;
ref_frame = ref_mode_set[idx].ref_frame;
if (cpi->use_svc) {
this_mode = ref_mode_set_svc[idx].pred_mode;
ref_frame = ref_mode_set_svc[idx].ref_frame;
}
} else {
// Add (0,0) compound modes.
this_mode = ZEROMV;
ref_frame = LAST_FRAME;
if (idx == num_inter_modes + comp_modes - 1) ref_frame = GOLDEN_FRAME;
second_ref_frame = ALTREF_FRAME;
comp_pred = 1;
}
if (ref_frame > usable_ref_frame) continue;
if (skip_ref_find_pred[ref_frame]) continue;
if (svc->previous_frame_is_intra_only) {
if (ref_frame != LAST_FRAME || frame_mv[this_mode][ref_frame].as_int != 0)
continue;
}
// If the segment reference frame feature is enabled then do nothing if the
// current ref frame is not allowed.
if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME) &&
get_segdata(seg, mi->segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame)
continue;
if (flag_svc_subpel && ref_frame == inter_layer_ref) {
force_mv_inter_layer = 1;
// Only test mode if NEARESTMV/NEARMV is (svc_mv_col, svc_mv_row),
// otherwise set NEWMV to (svc_mv_col, svc_mv_row).
if (this_mode == NEWMV) {
frame_mv[this_mode][ref_frame].as_mv.col = svc_mv_col;
frame_mv[this_mode][ref_frame].as_mv.row = svc_mv_row;
} else if (frame_mv[this_mode][ref_frame].as_mv.col != svc_mv_col ||
frame_mv[this_mode][ref_frame].as_mv.row != svc_mv_row) {
continue;
}
}
if (comp_pred) {
if (!cpi->allow_comp_inter_inter) continue;
// Skip compound inter modes if ARF is not available.
if (!(cpi->ref_frame_flags & flag_list[second_ref_frame])) continue;
// Do not allow compound prediction if the segment level reference frame
// feature is in use as in this case there can only be one reference.
if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME)) continue;
}
// For CBR mode: skip the golden reference search if sse of zeromv_last is
// below threshold.
if (ref_frame == GOLDEN_FRAME && cpi->oxcf.rc_mode == VPX_CBR &&
((cpi->use_svc && sse_zeromv_normalized < thresh_svc_skip_golden) ||
(!cpi->use_svc && sse_zeromv_normalized < thresh_skip_golden)))
continue;
if (!(cpi->ref_frame_flags & flag_list[ref_frame])) continue;
// For screen content. If zero_temp_sad source is computed: skip
// non-zero motion check for stationary blocks. If the superblock is
// non-stationary then for flat blocks skip the zero last check (keep golden
// as it may be inter-layer reference). Otherwise (if zero_temp_sad_source
// is not computed) skip non-zero motion check for flat blocks.
// TODO(marpan): Compute zero_temp_sad_source per coding block.
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN) {
if (cpi->compute_source_sad_onepass && cpi->sf.use_source_sad) {
if ((frame_mv[this_mode][ref_frame].as_int != 0 &&
x->zero_temp_sad_source) ||
(frame_mv[this_mode][ref_frame].as_int == 0 &&
x->source_variance == 0 && ref_frame == LAST_FRAME &&
!x->zero_temp_sad_source))
continue;
} else if (frame_mv[this_mode][ref_frame].as_int != 0 &&
x->source_variance == 0) {
continue;
}
}
if (!(cpi->sf.inter_mode_mask[bsize] & (1 << this_mode))) continue;
if (cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR) {
if (cpi->rc.is_src_frame_alt_ref &&
(ref_frame != ALTREF_FRAME ||
frame_mv[this_mode][ref_frame].as_int != 0))
continue;
if (!cm->show_frame && ref_frame == ALTREF_FRAME &&
frame_mv[this_mode][ref_frame].as_int != 0)
continue;
if (cpi->rc.alt_ref_gf_group && cm->show_frame &&
cpi->rc.frames_since_golden > (cpi->rc.baseline_gf_interval >> 1) &&
ref_frame == GOLDEN_FRAME &&
frame_mv[this_mode][ref_frame].as_int != 0)
continue;
if (cpi->rc.alt_ref_gf_group && cm->show_frame &&
cpi->rc.frames_since_golden > 0 &&
cpi->rc.frames_since_golden < (cpi->rc.baseline_gf_interval >> 1) &&
ref_frame == ALTREF_FRAME &&
frame_mv[this_mode][ref_frame].as_int != 0)
continue;
}
if (const_motion[ref_frame] && this_mode == NEARMV) continue;
// Skip non-zeromv mode search for golden frame if force_skip_low_temp_var
// is set. If nearestmv for golden frame is 0, zeromv mode will be skipped
// later.
if (!force_mv_inter_layer && force_skip_low_temp_var &&
ref_frame == GOLDEN_FRAME &&
frame_mv[this_mode][ref_frame].as_int != 0) {
continue;
}
if (x->content_state_sb != kVeryHighSad &&
(cpi->sf.short_circuit_low_temp_var >= 2 ||
(cpi->sf.short_circuit_low_temp_var == 1 && bsize == BLOCK_64X64)) &&
force_skip_low_temp_var && ref_frame == LAST_FRAME &&
this_mode == NEWMV) {
continue;
}
if (cpi->use_svc) {
if (!force_mv_inter_layer && svc_force_zero_mode[ref_frame - 1] &&
frame_mv[this_mode][ref_frame].as_int != 0)
continue;
}
// Disable this drop out case if the ref frame segment level feature is
// enabled for this segment. This is to prevent the possibility that we end
// up unable to pick any mode.
if (!segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME)) {
if (sf->reference_masking &&
!(frame_mv[this_mode][ref_frame].as_int == 0 &&
ref_frame == LAST_FRAME)) {
if (usable_ref_frame < ALTREF_FRAME) {
if (!force_skip_low_temp_var && usable_ref_frame > LAST_FRAME) {
i = (ref_frame == LAST_FRAME) ? GOLDEN_FRAME : LAST_FRAME;
if ((cpi->ref_frame_flags & flag_list[i]))
if (x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[i] << 1))
ref_frame_skip_mask |= (1 << ref_frame);
}
} else if (!cpi->rc.is_src_frame_alt_ref &&
!(frame_mv[this_mode][ref_frame].as_int == 0 &&
ref_frame == ALTREF_FRAME)) {
int ref1 = (ref_frame == GOLDEN_FRAME) ? LAST_FRAME : GOLDEN_FRAME;
int ref2 = (ref_frame == ALTREF_FRAME) ? LAST_FRAME : ALTREF_FRAME;
if (((cpi->ref_frame_flags & flag_list[ref1]) &&
(x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[ref1] << 1))) ||
((cpi->ref_frame_flags & flag_list[ref2]) &&
(x->pred_mv_sad[ref_frame] > (x->pred_mv_sad[ref2] << 1))))
ref_frame_skip_mask |= (1 << ref_frame);
}
}
if (ref_frame_skip_mask & (1 << ref_frame)) continue;
}
// Select prediction reference frames.
for (i = 0; i < MAX_MB_PLANE; i++) {
xd->plane[i].pre[0] = yv12_mb[ref_frame][i];
if (comp_pred) xd->plane[i].pre[1] = yv12_mb[second_ref_frame][i];
}
mi->ref_frame[0] = ref_frame;
mi->ref_frame[1] = second_ref_frame;
set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
mode_index = mode_idx[ref_frame][INTER_OFFSET(this_mode)];
mode_rd_thresh = best_pickmode.best_mode_skip_txfm
? rd_threshes[mode_index] << 1
: rd_threshes[mode_index];
// Increase mode_rd_thresh value for GOLDEN_FRAME for improved encoding
// speed with little/no subjective quality loss.
if (cpi->sf.bias_golden && ref_frame == GOLDEN_FRAME &&
cpi->rc.frames_since_golden > 4)
mode_rd_thresh = mode_rd_thresh << 3;
if ((cpi->sf.adaptive_rd_thresh_row_mt &&
rd_less_than_thresh_row_mt(best_rdc.rdcost, mode_rd_thresh,
&rd_thresh_freq_fact[mode_index])) ||
(!cpi->sf.adaptive_rd_thresh_row_mt &&
rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh,
&rd_thresh_freq_fact[mode_index])))
if (frame_mv[this_mode][ref_frame].as_int != 0) continue;
if (this_mode == NEWMV && !force_mv_inter_layer) {
if (search_new_mv(cpi, x, frame_mv, ref_frame, gf_temporal_ref, bsize,
mi_row, mi_col, best_pred_sad, &rate_mv, best_sse_sofar,
&best_rdc))
continue;
}
// TODO(jianj): Skipping the testing of (duplicate) non-zero motion vector
// causes some regression, leave it for duplicate zero-mv for now, until
// regression issue is resolved.
for (inter_mv_mode = NEARESTMV; inter_mv_mode <= NEWMV; inter_mv_mode++) {
if (inter_mv_mode == this_mode || comp_pred) continue;
if (mode_checked[inter_mv_mode][ref_frame] &&
frame_mv[this_mode][ref_frame].as_int ==
frame_mv[inter_mv_mode][ref_frame].as_int &&
frame_mv[inter_mv_mode][ref_frame].as_int == 0) {
skip_this_mv = 1;
break;
}
}
if (skip_this_mv) continue;
// If use_golden_nonzeromv is false, NEWMV mode is skipped for golden, no
// need to compute best_pred_sad which is only used to skip golden NEWMV.
if (use_golden_nonzeromv && this_mode == NEWMV && ref_frame == LAST_FRAME &&
frame_mv[NEWMV][LAST_FRAME].as_int != INVALID_MV) {
const int pre_stride = xd->plane[0].pre[0].stride;
const uint8_t *const pre_buf =
xd->plane[0].pre[0].buf +
(frame_mv[NEWMV][LAST_FRAME].as_mv.row >> 3) * pre_stride +
(frame_mv[NEWMV][LAST_FRAME].as_mv.col >> 3);
best_pred_sad = cpi->fn_ptr[bsize].sdf(
x->plane[0].src.buf, x->plane[0].src.stride, pre_buf, pre_stride);
x->pred_mv_sad[LAST_FRAME] = best_pred_sad;
}
if (this_mode != NEARESTMV && !comp_pred &&
frame_mv[this_mode][ref_frame].as_int ==
frame_mv[NEARESTMV][ref_frame].as_int)
continue;
mi->mode = this_mode;
mi->mv[0].as_int = frame_mv[this_mode][ref_frame].as_int;
mi->mv[1].as_int = 0;
// Search for the best prediction filter type, when the resulting
// motion vector is at sub-pixel accuracy level for luma component, i.e.,
// the last three bits are all zeros.
if (reuse_inter_pred) {
if (!this_mode_pred) {
this_mode_pred = &tmp[3];
} else {
this_mode_pred = &tmp[get_pred_buffer(tmp, 3)];
pd->dst.buf = this_mode_pred->data;
pd->dst.stride = bw;
}
}
if ((this_mode == NEWMV || filter_ref == SWITCHABLE) &&
pred_filter_search &&
(ref_frame == LAST_FRAME ||
(ref_frame == GOLDEN_FRAME && !force_mv_inter_layer &&
(cpi->use_svc || cpi->oxcf.rc_mode == VPX_VBR))) &&
(((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07) != 0)) {
rd_computed = 1;
search_filter_ref(cpi, x, &this_rdc, mi_row, mi_col, tmp, bsize,
reuse_inter_pred, &this_mode_pred, &var_y, &sse_y,
force_smooth_filter);
} else {
// For low motion content use x->sb_is_skin in addition to VeryHighSad
// for setting large_block.
const int large_block =
(x->content_state_sb == kVeryHighSad ||
(x->sb_is_skin && cpi->rc.avg_frame_low_motion > 70) ||
cpi->oxcf.speed < 7)
? bsize > BLOCK_32X32
: bsize >= BLOCK_32X32;
mi->interp_filter = (filter_ref == SWITCHABLE) ? EIGHTTAP : filter_ref;
if (cpi->use_svc && ref_frame == GOLDEN_FRAME &&
svc_force_zero_mode[ref_frame - 1])
mi->interp_filter = filter_gf_svc;
vp9_build_inter_predictors_sby(xd, mi_row, mi_col, bsize);
// For large partition blocks, extra testing is done.
if (cpi->oxcf.rc_mode == VPX_CBR && large_block &&
!cyclic_refresh_segment_id_boosted(xd->mi[0]->segment_id) &&
cm->base_qindex) {
model_rd_for_sb_y_large(cpi, bsize, x, xd, &this_rdc.rate,
&this_rdc.dist, &var_y, &sse_y, mi_row, mi_col,
&this_early_term, flag_preduv_computed);
} else {
rd_computed = 1;
model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist,
&var_y, &sse_y);
}
// Save normalized sse (between current and last frame) for (0, 0) motion.
if (ref_frame == LAST_FRAME &&
frame_mv[this_mode][ref_frame].as_int == 0) {
sse_zeromv_normalized =
sse_y >> (b_width_log2_lookup[bsize] + b_height_log2_lookup[bsize]);
}
if (sse_y < best_sse_sofar) best_sse_sofar = sse_y;
}
if (!this_early_term) {
this_sse = (int64_t)sse_y;
block_yrd(cpi, x, &this_rdc, &is_skippable, &this_sse, bsize,
VPXMIN(mi->tx_size, TX_16X16), rd_computed);
x->skip_txfm[0] = is_skippable;
if (is_skippable) {
this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
} else {
if (RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist) <
RDCOST(x->rdmult, x->rddiv, 0, this_sse)) {
this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 0);
} else {
this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
this_rdc.dist = this_sse;
x->skip_txfm[0] = SKIP_TXFM_AC_DC;
}
}
if (cm->interp_filter == SWITCHABLE) {
if ((mi->mv[0].as_mv.row | mi->mv[0].as_mv.col) & 0x07)
this_rdc.rate += vp9_get_switchable_rate(cpi, xd);
}
} else {
this_rdc.rate += cm->interp_filter == SWITCHABLE
? vp9_get_switchable_rate(cpi, xd)
: 0;
this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(cm, xd), 1);
}
if (!this_early_term &&
(x->color_sensitivity[0] || x->color_sensitivity[1])) {
RD_COST rdc_uv;
const BLOCK_SIZE uv_bsize = get_plane_block_size(bsize, &xd->plane[1]);
if (x->color_sensitivity[0] && !flag_preduv_computed[0]) {
vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, 1);
flag_preduv_computed[0] = 1;
}
if (x->color_sensitivity[1] && !flag_preduv_computed[1]) {
vp9_build_inter_predictors_sbp(xd, mi_row, mi_col, bsize, 2);
flag_preduv_computed[1] = 1;
}
model_rd_for_sb_uv(cpi, uv_bsize, x, xd, &rdc_uv, &var_y, &sse_y, 1, 2);
this_rdc.rate += rdc_uv.rate;
this_rdc.dist += rdc_uv.dist;
}
this_rdc.rate += rate_mv;
this_rdc.rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
[INTER_OFFSET(this_mode)];
// TODO(marpan): Add costing for compound mode.
this_rdc.rate += ref_frame_cost[ref_frame];
this_rdc.rdcost = RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
// Bias against NEWMV that is very different from its neighbors, and bias
// to small motion-lastref for noisy input.
if (cpi->oxcf.rc_mode == VPX_CBR && cpi->oxcf.speed >= 5 &&
cpi->oxcf.content != VP9E_CONTENT_SCREEN) {
vp9_NEWMV_diff_bias(&cpi->noise_estimate, xd, this_mode, &this_rdc, bsize,
frame_mv[this_mode][ref_frame].as_mv.row,
frame_mv[this_mode][ref_frame].as_mv.col,
ref_frame == LAST_FRAME, x->lowvar_highsumdiff,
x->sb_is_skin);
}
// Skipping checking: test to see if this block can be reconstructed by
// prediction only.
if (cpi->allow_encode_breakout && !xd->lossless && !scene_change_detected &&
!svc->high_num_blocks_with_motion) {
encode_breakout_test(cpi, x, bsize, mi_row, mi_col, ref_frame, this_mode,
var_y, sse_y, yv12_mb, &this_rdc.rate,
&this_rdc.dist, flag_preduv_computed);
if (x->skip) {
this_rdc.rate += rate_mv;
this_rdc.rdcost =
RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
}
}
// On spatially flat blocks for screne content: bias against zero-last
// if the sse_y is non-zero. Only on scene change or high motion frames.
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN &&
(scene_change_detected || svc->high_num_blocks_with_motion) &&
ref_frame == LAST_FRAME && frame_mv[this_mode][ref_frame].as_int == 0 &&
svc->spatial_layer_id == 0 && x->source_variance == 0 && sse_y > 0) {
this_rdc.rdcost = this_rdc.rdcost << 2;
}
#if CONFIG_VP9_TEMPORAL_DENOISING
if (cpi->oxcf.noise_sensitivity > 0 && denoise_svc_pickmode &&
cpi->denoiser.denoising_level > kDenLowLow) {
vp9_denoiser_update_frame_stats(mi, sse_y, this_mode, ctx);
// Keep track of zero_last cost.
if (ref_frame == LAST_FRAME && frame_mv[this_mode][ref_frame].as_int == 0)
zero_last_cost_orig = this_rdc.rdcost;
}
#else
(void)ctx;
#endif
mode_checked[this_mode][ref_frame] = 1;
if (this_rdc.rdcost < best_rdc.rdcost || x->skip) {
best_rdc = this_rdc;
best_early_term = this_early_term;
best_pickmode.best_mode = this_mode;
best_pickmode.best_pred_filter = mi->interp_filter;
best_pickmode.best_tx_size = mi->tx_size;
best_pickmode.best_ref_frame = ref_frame;
best_pickmode.best_mode_skip_txfm = x->skip_txfm[0];
best_pickmode.best_second_ref_frame = second_ref_frame;
if (reuse_inter_pred) {
free_pred_buffer(best_pickmode.best_pred);
best_pickmode.best_pred = this_mode_pred;
}
} else {
if (reuse_inter_pred) free_pred_buffer(this_mode_pred);
}
if (x->skip &&
(!force_test_gf_zeromv || mode_checked[ZEROMV][GOLDEN_FRAME]))
break;
// If early termination flag is 1 and at least 2 modes are checked,
// the mode search is terminated.
if (best_early_term && idx > 0 && !scene_change_detected &&
(!force_test_gf_zeromv || mode_checked[ZEROMV][GOLDEN_FRAME])) {
x->skip = 1;
break;
}
}
mi->mode = best_pickmode.best_mode;
mi->interp_filter = best_pickmode.best_pred_filter;
mi->tx_size = best_pickmode.best_tx_size;
mi->ref_frame[0] = best_pickmode.best_ref_frame;
mi->mv[0].as_int =
frame_mv[best_pickmode.best_mode][best_pickmode.best_ref_frame].as_int;
xd->mi[0]->bmi[0].as_mv[0].as_int = mi->mv[0].as_int;
x->skip_txfm[0] = best_pickmode.best_mode_skip_txfm;
mi->ref_frame[1] = best_pickmode.best_second_ref_frame;
// For spatial enhancemanent layer: perform intra prediction only if base
// layer is chosen as the reference. Always perform intra prediction if
// LAST is the only reference, or is_key_frame is set, or on base
// temporal layer.
if (svc->spatial_layer_id && !gf_temporal_ref) {
perform_intra_pred =
svc->temporal_layer_id == 0 ||
svc->layer_context[svc->temporal_layer_id].is_key_frame ||
!(cpi->ref_frame_flags & flag_list[GOLDEN_FRAME]) ||
(!svc->layer_context[svc->temporal_layer_id].is_key_frame &&
svc_force_zero_mode[best_pickmode.best_ref_frame - 1]);
inter_mode_thresh = (inter_mode_thresh << 1) + inter_mode_thresh;
}
if ((cpi->oxcf.lag_in_frames > 0 && cpi->oxcf.rc_mode == VPX_VBR &&
cpi->rc.is_src_frame_alt_ref) ||
svc->previous_frame_is_intra_only)
perform_intra_pred = 0;
// If the segment reference frame feature is enabled and set then
// skip the intra prediction.
if (segfeature_active(seg, mi->segment_id, SEG_LVL_REF_FRAME) &&
get_segdata(seg, mi->segment_id, SEG_LVL_REF_FRAME) > 0)
perform_intra_pred = 0;
// Perform intra prediction search, if the best SAD is above a certain
// threshold.
if (best_rdc.rdcost == INT64_MAX ||
(cpi->oxcf.content == VP9E_CONTENT_SCREEN && x->source_variance == 0) ||
(scene_change_detected && perform_intra_pred) ||
((!force_skip_low_temp_var || bsize < BLOCK_32X32 ||
x->content_state_sb == kVeryHighSad) &&
perform_intra_pred && !x->skip && best_rdc.rdcost > inter_mode_thresh &&
bsize <= cpi->sf.max_intra_bsize && !x->skip_low_source_sad &&
!x->lowvar_highsumdiff)) {
struct estimate_block_intra_args args = { cpi, x, DC_PRED, 1, 0 };
int i;
PRED_BUFFER *const best_pred = best_pickmode.best_pred;
TX_SIZE intra_tx_size =
VPXMIN(max_txsize_lookup[bsize],
tx_mode_to_biggest_tx_size[cpi->common.tx_mode]);
if (cpi->oxcf.content != VP9E_CONTENT_SCREEN && intra_tx_size > TX_16X16)
intra_tx_size = TX_16X16;
if (reuse_inter_pred && best_pred != NULL) {
if (best_pred->data == orig_dst.buf) {
this_mode_pred = &tmp[get_pred_buffer(tmp, 3)];
#if CONFIG_VP9_HIGHBITDEPTH
if (cm->use_highbitdepth)
vpx_highbd_convolve_copy(
CONVERT_TO_SHORTPTR(best_pred->data), best_pred->stride,
CONVERT_TO_SHORTPTR(this_mode_pred->data), this_mode_pred->stride,
NULL, 0, 0, 0, 0, bw, bh, xd->bd);
else
vpx_convolve_copy(best_pred->data, best_pred->stride,
this_mode_pred->data, this_mode_pred->stride, NULL,
0, 0, 0, 0, bw, bh);
#else
vpx_convolve_copy(best_pred->data, best_pred->stride,
this_mode_pred->data, this_mode_pred->stride, NULL, 0,
0, 0, 0, bw, bh);
#endif // CONFIG_VP9_HIGHBITDEPTH
best_pickmode.best_pred = this_mode_pred;
}
}
pd->dst = orig_dst;
for (i = 0; i < 4; ++i) {
const PREDICTION_MODE this_mode = intra_mode_list[i];
THR_MODES mode_index = mode_idx[INTRA_FRAME][mode_offset(this_mode)];
int mode_rd_thresh = rd_threshes[mode_index];
// For spatially flat blocks, under short_circuit_flat_blocks flag:
// only check DC mode for stationary blocks, otherwise also check
// H and V mode.
if (sf->short_circuit_flat_blocks && x->source_variance == 0 &&
((x->zero_temp_sad_source && this_mode != DC_PRED) || i > 2)) {
continue;
}
if (!((1 << this_mode) & cpi->sf.intra_y_mode_bsize_mask[bsize]))
continue;
if ((cpi->sf.adaptive_rd_thresh_row_mt &&
rd_less_than_thresh_row_mt(best_rdc.rdcost, mode_rd_thresh,
&rd_thresh_freq_fact[mode_index])) ||
(!cpi->sf.adaptive_rd_thresh_row_mt &&
rd_less_than_thresh(best_rdc.rdcost, mode_rd_thresh,
&rd_thresh_freq_fact[mode_index]))) {
// Avoid this early exit for screen on base layer, for scene
// changes or high motion frames.
if (cpi->oxcf.content != VP9E_CONTENT_SCREEN ||
svc->spatial_layer_id > 0 ||
(!scene_change_detected && !svc->high_num_blocks_with_motion))
continue;
}
mi->mode = this_mode;
mi->ref_frame[0] = INTRA_FRAME;
this_rdc.dist = this_rdc.rate = 0;
args.mode = this_mode;
args.skippable = 1;
args.rdc = &this_rdc;
mi->tx_size = intra_tx_size;
vp9_foreach_transformed_block_in_plane(xd, bsize, 0, estimate_block_intra,
&args);
// Check skip cost here since skippable is not set for for uv, this
// mirrors the behavior used by inter
if (args.skippable) {
x->skip_txfm[0] = SKIP_TXFM_AC_DC;
this_rdc.rate = vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 1);
} else {
x->skip_txfm[0] = SKIP_TXFM_NONE;
this_rdc.rate += vp9_cost_bit(vp9_get_skip_prob(&cpi->common, xd), 0);
}
// Inter and intra RD will mismatch in scale for non-screen content.
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN) {
if (x->color_sensitivity[0])
vp9_foreach_transformed_block_in_plane(xd, bsize, 1,
estimate_block_intra, &args);
if (x->color_sensitivity[1])
vp9_foreach_transformed_block_in_plane(xd, bsize, 2,
estimate_block_intra, &args);
}
this_rdc.rate += cpi->mbmode_cost[this_mode];
this_rdc.rate += ref_frame_cost[INTRA_FRAME];
this_rdc.rate += intra_cost_penalty;
this_rdc.rdcost =
RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
if (this_rdc.rdcost < best_rdc.rdcost) {
best_rdc = this_rdc;
best_pickmode.best_mode = this_mode;
best_pickmode.best_intra_tx_size = mi->tx_size;
best_pickmode.best_ref_frame = INTRA_FRAME;
best_pickmode.best_second_ref_frame = NONE;
mi->uv_mode = this_mode;
mi->mv[0].as_int = INVALID_MV;
mi->mv[1].as_int = INVALID_MV;
best_pickmode.best_mode_skip_txfm = x->skip_txfm[0];
}
}
// Reset mb_mode_info to the best inter mode.
if (best_pickmode.best_ref_frame != INTRA_FRAME) {
mi->tx_size = best_pickmode.best_tx_size;
} else {
mi->tx_size = best_pickmode.best_intra_tx_size;
}
}
pd->dst = orig_dst;
mi->mode = best_pickmode.best_mode;
mi->ref_frame[0] = best_pickmode.best_ref_frame;
mi->ref_frame[1] = best_pickmode.best_second_ref_frame;
x->skip_txfm[0] = best_pickmode.best_mode_skip_txfm;
if (!is_inter_block(mi)) {
mi->interp_filter = SWITCHABLE_FILTERS;
}
if (reuse_inter_pred && best_pickmode.best_pred != NULL) {
PRED_BUFFER *const best_pred = best_pickmode.best_pred;
if (best_pred->data != orig_dst.buf && is_inter_mode(mi->mode)) {
#if CONFIG_VP9_HIGHBITDEPTH
if (cm->use_highbitdepth)
vpx_highbd_convolve_copy(
CONVERT_TO_SHORTPTR(best_pred->data), best_pred->stride,
CONVERT_TO_SHORTPTR(pd->dst.buf), pd->dst.stride, NULL, 0, 0, 0, 0,
bw, bh, xd->bd);
else
vpx_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf,
pd->dst.stride, NULL, 0, 0, 0, 0, bw, bh);
#else
vpx_convolve_copy(best_pred->data, best_pred->stride, pd->dst.buf,
pd->dst.stride, NULL, 0, 0, 0, 0, bw, bh);
#endif // CONFIG_VP9_HIGHBITDEPTH
}
}
#if CONFIG_VP9_TEMPORAL_DENOISING
if (cpi->oxcf.noise_sensitivity > 0 && cpi->resize_pending == 0 &&
denoise_svc_pickmode && cpi->denoiser.denoising_level > kDenLowLow &&
cpi->denoiser.reset == 0) {
VP9_DENOISER_DECISION decision = COPY_BLOCK;
ctx->sb_skip_denoising = 0;
// TODO(marpan): There is an issue with denoising when the
// superblock partitioning scheme is based on the pickmode.
// Remove this condition when the issue is resolved.
if (x->sb_pickmode_part) ctx->sb_skip_denoising = 1;
vp9_pickmode_ctx_den_update(&ctx_den, zero_last_cost_orig, ref_frame_cost,
frame_mv, reuse_inter_pred, &best_pickmode);
vp9_denoiser_denoise(cpi, x, mi_row, mi_col, bsize, ctx, &decision,
gf_temporal_ref);
recheck_zeromv_after_denoising(cpi, mi, x, xd, decision, &ctx_den, yv12_mb,
&best_rdc, bsize, mi_row, mi_col);
best_pickmode.best_ref_frame = ctx_den.best_ref_frame;
}
#endif
if (best_pickmode.best_ref_frame == ALTREF_FRAME ||
best_pickmode.best_second_ref_frame == ALTREF_FRAME)
x->arf_frame_usage++;
else if (best_pickmode.best_ref_frame != INTRA_FRAME)
x->lastgolden_frame_usage++;
if (cpi->sf.adaptive_rd_thresh) {
THR_MODES best_mode_idx =
mode_idx[best_pickmode.best_ref_frame][mode_offset(mi->mode)];
if (best_pickmode.best_ref_frame == INTRA_FRAME) {
// Only consider the modes that are included in the intra_mode_list.
int intra_modes = sizeof(intra_mode_list) / sizeof(PREDICTION_MODE);
int i;
// TODO(yunqingwang): Check intra mode mask and only update freq_fact
// for those valid modes.
for (i = 0; i < intra_modes; i++) {
if (cpi->sf.adaptive_rd_thresh_row_mt)
update_thresh_freq_fact_row_mt(cpi, tile_data, x->source_variance,
thresh_freq_fact_idx, INTRA_FRAME,
best_mode_idx, intra_mode_list[i]);
else
update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize,
INTRA_FRAME, best_mode_idx,
intra_mode_list[i]);
}
} else {
for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
PREDICTION_MODE this_mode;
if (best_pickmode.best_ref_frame != ref_frame) continue;
for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {
if (cpi->sf.adaptive_rd_thresh_row_mt)
update_thresh_freq_fact_row_mt(cpi, tile_data, x->source_variance,
thresh_freq_fact_idx, ref_frame,
best_mode_idx, this_mode);
else
update_thresh_freq_fact(cpi, tile_data, x->source_variance, bsize,
ref_frame, best_mode_idx, this_mode);
}
}
}
}
*rd_cost = best_rdc;
}
void vp9_pick_inter_mode_sub8x8(VP9_COMP *cpi, MACROBLOCK *x, int mi_row,
int mi_col, RD_COST *rd_cost, BLOCK_SIZE bsize,
PICK_MODE_CONTEXT *ctx) {
VP9_COMMON *const cm = &cpi->common;
SPEED_FEATURES *const sf = &cpi->sf;
MACROBLOCKD *const xd = &x->e_mbd;
MODE_INFO *const mi = xd->mi[0];
MB_MODE_INFO_EXT *const mbmi_ext = x->mbmi_ext;
const struct segmentation *const seg = &cm->seg;
MV_REFERENCE_FRAME ref_frame, second_ref_frame = NONE;
MV_REFERENCE_FRAME best_ref_frame = NONE;
unsigned char segment_id = mi->segment_id;
struct buf_2d yv12_mb[4][MAX_MB_PLANE];
static const int flag_list[4] = { 0, VP9_LAST_FLAG, VP9_GOLD_FLAG,
VP9_ALT_FLAG };
int64_t best_rd = INT64_MAX;
b_mode_info bsi[MAX_REF_FRAMES][4];
int ref_frame_skip_mask = 0;
const int num_4x4_blocks_wide = num_4x4_blocks_wide_lookup[bsize];
const int num_4x4_blocks_high = num_4x4_blocks_high_lookup[bsize];
int idx, idy;
x->skip_encode = sf->skip_encode_frame && x->q_index < QIDX_SKIP_THRESH;
ctx->pred_pixel_ready = 0;
for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
const YV12_BUFFER_CONFIG *yv12 = get_ref_frame_buffer(cpi, ref_frame);
int_mv dummy_mv[2];
x->pred_mv_sad[ref_frame] = INT_MAX;
if ((cpi->ref_frame_flags & flag_list[ref_frame]) && (yv12 != NULL)) {
int_mv *const candidates = mbmi_ext->ref_mvs[ref_frame];
const struct scale_factors *const sf = &cm->frame_refs[ref_frame - 1].sf;
vp9_setup_pred_block(xd, yv12_mb[ref_frame], yv12, mi_row, mi_col, sf,
sf);
vp9_find_mv_refs(cm, xd, xd->mi[0], ref_frame, candidates, mi_row, mi_col,
mbmi_ext->mode_context);
vp9_find_best_ref_mvs(xd, cm->allow_high_precision_mv, candidates,
&dummy_mv[0], &dummy_mv[1]);
} else {
ref_frame_skip_mask |= (1 << ref_frame);
}
}
mi->sb_type = bsize;
mi->tx_size = TX_4X4;
mi->uv_mode = DC_PRED;
mi->ref_frame[0] = LAST_FRAME;
mi->ref_frame[1] = NONE;
mi->interp_filter =
cm->interp_filter == SWITCHABLE ? EIGHTTAP : cm->interp_filter;
for (ref_frame = LAST_FRAME; ref_frame <= GOLDEN_FRAME; ++ref_frame) {
int64_t this_rd = 0;
int plane;
if (ref_frame_skip_mask & (1 << ref_frame)) continue;
#if CONFIG_BETTER_HW_COMPATIBILITY
if ((bsize == BLOCK_8X4 || bsize == BLOCK_4X8) && ref_frame > INTRA_FRAME &&
vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf))
continue;
#endif
// TODO(jingning, agrange): Scaling reference frame not supported for
// sub8x8 blocks. Is this supported now?
if (ref_frame > INTRA_FRAME &&
vp9_is_scaled(&cm->frame_refs[ref_frame - 1].sf))
continue;
// If the segment reference frame feature is enabled....
// then do nothing if the current ref frame is not allowed..
if (segfeature_active(seg, segment_id, SEG_LVL_REF_FRAME) &&
get_segdata(seg, segment_id, SEG_LVL_REF_FRAME) != (int)ref_frame)
continue;
mi->ref_frame[0] = ref_frame;
x->skip = 0;
set_ref_ptrs(cm, xd, ref_frame, second_ref_frame);
// Select prediction reference frames.
for (plane = 0; plane < MAX_MB_PLANE; plane++)
xd->plane[plane].pre[0] = yv12_mb[ref_frame][plane];
for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
int_mv b_mv[MB_MODE_COUNT];
int64_t b_best_rd = INT64_MAX;
const int i = idy * 2 + idx;
PREDICTION_MODE this_mode;
RD_COST this_rdc;
unsigned int var_y, sse_y;
struct macroblock_plane *p = &x->plane[0];
struct macroblockd_plane *pd = &xd->plane[0];
const struct buf_2d orig_src = p->src;
const struct buf_2d orig_dst = pd->dst;
struct buf_2d orig_pre[2];
memcpy(orig_pre, xd->plane[0].pre, sizeof(orig_pre));
// set buffer pointers for sub8x8 motion search.
p->src.buf =
&p->src.buf[vp9_raster_block_offset(BLOCK_8X8, i, p->src.stride)];
pd->dst.buf =
&pd->dst.buf[vp9_raster_block_offset(BLOCK_8X8, i, pd->dst.stride)];
pd->pre[0].buf =
&pd->pre[0]
.buf[vp9_raster_block_offset(BLOCK_8X8, i, pd->pre[0].stride)];
b_mv[ZEROMV].as_int = 0;
b_mv[NEWMV].as_int = INVALID_MV;
vp9_append_sub8x8_mvs_for_idx(cm, xd, i, 0, mi_row, mi_col,
&b_mv[NEARESTMV], &b_mv[NEARMV],
mbmi_ext->mode_context);
for (this_mode = NEARESTMV; this_mode <= NEWMV; ++this_mode) {
int b_rate = 0;
xd->mi[0]->bmi[i].as_mv[0].as_int = b_mv[this_mode].as_int;
if (this_mode == NEWMV) {
const int step_param = cpi->sf.mv.fullpel_search_step_param;
MV mvp_full;
MV tmp_mv;
int cost_list[5];
const MvLimits tmp_mv_limits = x->mv_limits;
uint32_t dummy_dist;
if (i == 0) {
mvp_full.row = b_mv[NEARESTMV].as_mv.row >> 3;
mvp_full.col = b_mv[NEARESTMV].as_mv.col >> 3;
} else {
mvp_full.row = xd->mi[0]->bmi[0].as_mv[0].as_mv.row >> 3;
mvp_full.col = xd->mi[0]->bmi[0].as_mv[0].as_mv.col >> 3;
}
vp9_set_mv_search_range(&x->mv_limits,
&mbmi_ext->ref_mvs[ref_frame][0].as_mv);
vp9_full_pixel_search(
cpi, x, bsize, &mvp_full, step_param, cpi->sf.mv.search_method,
x->sadperbit4, cond_cost_list(cpi, cost_list),
&mbmi_ext->ref_mvs[ref_frame][0].as_mv, &tmp_mv, INT_MAX, 0);
x->mv_limits = tmp_mv_limits;
// calculate the bit cost on motion vector
mvp_full.row = tmp_mv.row * 8;
mvp_full.col = tmp_mv.col * 8;
b_rate += vp9_mv_bit_cost(
&mvp_full, &mbmi_ext->ref_mvs[ref_frame][0].as_mv,
x->nmvjointcost, x->mvcost, MV_COST_WEIGHT);
b_rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
[INTER_OFFSET(NEWMV)];
if (RDCOST(x->rdmult, x->rddiv, b_rate, 0) > b_best_rd) continue;
cpi->find_fractional_mv_step(
x, &tmp_mv, &mbmi_ext->ref_mvs[ref_frame][0].as_mv,
cpi->common.allow_high_precision_mv, x->errorperbit,
&cpi->fn_ptr[bsize], cpi->sf.mv.subpel_force_stop,
cpi->sf.mv.subpel_search_level, cond_cost_list(cpi, cost_list),
x->nmvjointcost, x->mvcost, &dummy_dist,
&x->pred_sse[ref_frame], NULL, 0, 0,
cpi->sf.use_accurate_subpel_search);
xd->mi[0]->bmi[i].as_mv[0].as_mv = tmp_mv;
} else {
b_rate += cpi->inter_mode_cost[x->mbmi_ext->mode_context[ref_frame]]
[INTER_OFFSET(this_mode)];
}
#if CONFIG_VP9_HIGHBITDEPTH
if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
vp9_highbd_build_inter_predictor(
CONVERT_TO_SHORTPTR(pd->pre[0].buf), pd->pre[0].stride,
CONVERT_TO_SHORTPTR(pd->dst.buf), pd->dst.stride,
&xd->mi[0]->bmi[i].as_mv[0].as_mv, &xd->block_refs[0]->sf,
4 * num_4x4_blocks_wide, 4 * num_4x4_blocks_high, 0,
vp9_filter_kernels[mi->interp_filter], MV_PRECISION_Q3,
mi_col * MI_SIZE + 4 * (i & 0x01),
mi_row * MI_SIZE + 4 * (i >> 1), xd->bd);
} else {
#endif
vp9_build_inter_predictor(
pd->pre[0].buf, pd->pre[0].stride, pd->dst.buf, pd->dst.stride,
&xd->mi[0]->bmi[i].as_mv[0].as_mv, &xd->block_refs[0]->sf,
4 * num_4x4_blocks_wide, 4 * num_4x4_blocks_high, 0,
vp9_filter_kernels[mi->interp_filter], MV_PRECISION_Q3,
mi_col * MI_SIZE + 4 * (i & 0x01),
mi_row * MI_SIZE + 4 * (i >> 1));
#if CONFIG_VP9_HIGHBITDEPTH
}
#endif
model_rd_for_sb_y(cpi, bsize, x, xd, &this_rdc.rate, &this_rdc.dist,
&var_y, &sse_y);
this_rdc.rate += b_rate;
this_rdc.rdcost =
RDCOST(x->rdmult, x->rddiv, this_rdc.rate, this_rdc.dist);
if (this_rdc.rdcost < b_best_rd) {
b_best_rd = this_rdc.rdcost;
bsi[ref_frame][i].as_mode = this_mode;
bsi[ref_frame][i].as_mv[0].as_mv = xd->mi[0]->bmi[i].as_mv[0].as_mv;
}
} // mode search
// restore source and prediction buffer pointers.
p->src = orig_src;
pd->pre[0] = orig_pre[0];
pd->dst = orig_dst;
this_rd += b_best_rd;
xd->mi[0]->bmi[i] = bsi[ref_frame][i];
if (num_4x4_blocks_wide > 1) xd->mi[0]->bmi[i + 1] = xd->mi[0]->bmi[i];
if (num_4x4_blocks_high > 1) xd->mi[0]->bmi[i + 2] = xd->mi[0]->bmi[i];
}
} // loop through sub8x8 blocks
if (this_rd < best_rd) {
best_rd = this_rd;
best_ref_frame = ref_frame;
}
} // reference frames
mi->tx_size = TX_4X4;
mi->ref_frame[0] = best_ref_frame;
for (idy = 0; idy < 2; idy += num_4x4_blocks_high) {
for (idx = 0; idx < 2; idx += num_4x4_blocks_wide) {
const int block = idy * 2 + idx;
xd->mi[0]->bmi[block] = bsi[best_ref_frame][block];
if (num_4x4_blocks_wide > 1)
xd->mi[0]->bmi[block + 1] = bsi[best_ref_frame][block];
if (num_4x4_blocks_high > 1)
xd->mi[0]->bmi[block + 2] = bsi[best_ref_frame][block];
}
}
mi->mode = xd->mi[0]->bmi[3].as_mode;
ctx->mic = *(xd->mi[0]);
ctx->mbmi_ext = *x->mbmi_ext;
ctx->skip_txfm[0] = SKIP_TXFM_NONE;
ctx->skip = 0;
// Dummy assignment for speed -5. No effect in speed -6.
rd_cost->rdcost = best_rd;
}